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Entourage Health

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FY2007 Annual Report · Entourage Health
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ABOUT ENTEGRIS

Entegris’ products and systems are used to purify, protect and
transport critical materials used in the semiconductor and
other microelectronics manufacturing processes. In doing so,
Entegris helps increase its customers’ process productivity and
manufacturing yields. Our products include: wafer carriers
and shippers that protect the semiconductor wafer from
contamination and breakage; filtration products that purify
process gases and liquids, as well as the ambient environment;
liquid systems, components and containers that dispense,
control or transport process fluids; and shippers and trays for
protecting and transporting devices and disk drive components.

FISCAL 2007 SALES BY REGION

Sales from Continuing Operations: $626.2 million

Entegris primarily sells direct, and its customer base includes
virtually every maker of semiconductor devices, wafers and
semiconductor fabrication equipment, as well as manufac-
turers of electronics such as disk drive components and flat
panel displays.

Using its expertise in materials science and advanced
electronics manufacturing processes, Entegris is helping a
broadening base of industries in North America, Europe, 
Asia and Japan to enable tomorrow’s electronics.

North America
27%

Europe
15%

Asia
35%

Japan
23%

A LETTER TO OUR SHAREHOLDERS

As I write this shareholder letter, it is difficult to imag-
ine that winter in New England is almost over and that
in less than a month will be the running of the Boston
Marathon. I am reminded that building enduring compa-
nies requires the mindset and attitude of a marathoner,
not a sprinter. In our own business marathon at Entegris,
we made steady progress last year toward our long-term
objectives. We introduced and ramped up a number of
exciting new products; took necessary and significant
steps to migrate our business infrastructure closer to 
our customers; completed our first acquisition since 
the Entegris/Mykrolis merger; took steps to increase
our return on invested capital; and, most importantly,
added a number of high-caliber new business leaders 
to our already talented worldwide team. 

Despite progress on a number of strategic and opera-
tional fronts, our financial results were disappointing,
reflecting a semiconductor market that softened in the
latter part of the year. Sales from continuing operations
were $626.2 million, down 7 percent from a year ago. 

As the year progressed, we experienced a gradual dete-
rioration in the business environment. Approximately
60 percent of our business is unit-driven and moves
directionally with our customers’ fab utilization rates
and production levels, which were fairly robust until
the fourth quarter. The remaining 40 percent of our
business, which is driven by capital investments and
expansion, benefited in part from the build-out of 
several new fabs around the world and continued on 
a strong path until the second half of the year. 

Approximately 75% of our sales in 2007 were to customers
outside North America. Investment in the semiconductor
and microelectronics industry continues to be concen-
trated in the Asia-Pacific region, a trend that helped 
to drive growth of our sales in that region last year. 

Although our profitability declined in 2007, largely
because of the lower revenues, we increased our cash
flow from operations by 37 percent, to $132 million. 
This was driven by a $20 million reduction in our 
inventory levels over the course of the year. 

Looking back on 2007, our focus on increasing the
return on invested capital revolved around three key
priorities: first, achieving revenue growth from new
products; second, increasing the leverage of our manu-
facturing footprint and moving closer to the customer;
third, redeploying our balance sheet to set the stage 
for higher shareholder returns in the future. 

While we did not achieve all our goals, we made sig -
nificant progress in each of these categories. We
achieved approximately $75 million in sales from key
new products and product derivatives. Many of these
new products are still in the early stages of gaining
market acceptance, such
as our 300 millimeter
FOSB, our 20 nanometer
rated Torrento™ liquid
filter, our IntelliGen®
Mini photochemical 
dispense system, and 
our Clarilite Certified
solution for controlling
reticle haze. In addition, our expanded family of liquid
filtration products to address applications in TFT-LCD
and other microelectronics markets is also gaining 
traction in the marketplace.

Investment in the semicon-
ductor and microelectronics
industry continues to be 
concentrated in the Asia-
Pacific region, a trend that
helped to drive growth of our
sales in that region last year. 

We also made major progress in implementing our plan
to improve the flexibility and cost structure of Entegris’
global supply chain. This plan entails expanding the
production of our facility in Kulim, Malaysia, consoli-
dating some of our smaller manufacturing and service
sites around the world, and implementing lean manu-
facturing techniques throughout the company. Of the
four products slated to be moved to Kulim, three are
fully production-ready, pending completion of the
required customer qualifications. We announced the
closure or transfer of three smaller manufacturing 
and service facilities – two in California and a third 
in Singapore. To date, more than 130 employees have
completed lean manufacturing training. We are already
seeing the positive results of these efforts in the form 
of lower scrap, lower costs, and higher yields.

To serve one of our largest global customers, we 
established a new subsidiary in Israel. This operation 
is located within minutes of one of the world’s most
advanced 45 nanometer semiconductor fabs, currently
under construction in Kiryat Gat, Israel.

We remain focused on
increasing our return on
invested capital, and the
steps we took in 2007
moved us forward in
achieving that objective.

We also took steps to redeploy our balance sheet to
position the company for growth and higher long-term
returns. We repurchased $256 million of our shares 
during the year, bringing total share repurchases since
2006 to 31 million shares.
During the first quarter 
of the current year, we
completed a $230 million
revolving credit agree-
ment, which will enable
us to both continue to
repurchase shares and 
to make acquisitions. In August 2007, we completed 
the acquisition of the semiconductor portion of Surmet
Corporation, which we named Entegris Specialty
Coatings. A leading supplier of specialized coated prod-
ucts for the semiconductor market and other high-tech
industries, the Specialty Coatings group augments our
technology base and materials science capability. 

Most important, I believe that over the past year we
strengthened our team around the world. Our products
and services are designed to support one of the most
demanding industries on the planet, and our most
important assets are therefore the dedicated profes-
sionals who stand behind our brand and our products
around the world. Team Entegris is stronger today than
it was a year ago, and that bodes well for our future. 
We are also investing time and effort in training and
developing our professionals to ensure we are able to
both meet the expectations of the marketplace and 
provide an environment where individuals can grow 
and achieve their full potential.

GOALS FOR 2008

We remain focused on increasing our return on 
invested capital, and the steps we took in 2007 
moved us forward in achieving that objective. But 
there is much more work to do. For 2008, our goals 
are clear and straightforward:

• Continue to increase revenue from new products

• Reduce our cost structure while increasing our 

competitiveness

• Ramp production volume of products transferred 
to our Kulim, Malaysia manufacturing facility

• Execute on our strategy to make selective and 

meaningful acquisitions that leverage our business
and expand our opportunities

I’d like to close with special thanks to Entegris’
employees around the world. Their talent, dedication
and determination are our most powerful weapon in
meeting the challenges of the currently difficult
macroeconomic environment and of the always 
highly competitive industry environment. 

I also want to thank our customers around the world,
who allow us to help them solve their most exacting
contamination control needs. 

Finally, I want to thank you, our shareholders, for your
continuing interest and support. We are determined 
to build the value of Entegris this year and in the 
years ahead.

Sincerely, 

Gideon Argov
President and Chief Executive Officer

Dear Shareholder:

Our markets are changing rapidly, perhaps more rapidly
than ever. This was particularly apparent in 2007. Our
large Asian customers have higher and higher expecta-
tions and want to do business with local suppliers that
provide local expertise, local people and instantaneous
response. This requires that we establish development
platforms in the region and strengthen our infrastruc-
ture in Asia.

As a leading supplier of contamination control products
and solutions to the semiconductor and microelectronics
industry, we have an important role in helping that
industry improve its return on capital by offering cost-
effective “insurance” against potential contamination
pitfalls. Contamination, if not dealt with, is a critical
and costly issue in the semiconductor manufacturing
process, because it has a direct impact on production
yields, productivity and the cost of manufacturing semi-
conductor devices. These same critical challenges are
faced by other markets we serve, such as flat panel 
displays and data storage devices.

Opportunities for Entegris continued to emerge in 2007,
both in enabling the newest technologies and processes
and in making existing and new processes more produc-
tive. We benefited from the construction of several 45
nanometer fabs in Israel, Taiwan and Korea as the indus-
try continued to move along its technology roadmap.

Maximizing growth opportunities and increasing com-
petitiveness are key elements for improving return on
invested capital. A key focus in 2007 was to realize the
results of our investments in engineering, research and
development. We invested nearly $40 million in 2007 to
expand our product offering and extend our technology
leadership. Some of these new products are still in the
early stages of market acceptance, and we expect them
to gain momentum and grow in 2008, even in a lacklus-
ter market environment. 

To increase our effectiveness, we simplified our 
business structure and aligned our cost structure 
and discretionary spending to match current market
demand. As chief operating officer, I consolidated the

management of all of our contamination control 
businesses, leaving us with two key strategic product
groups, one focused on contamination control and the
other on high-purity microenvironments. With a single
organ ization focused on contamination control, we 
integrated the various
organizations coming
from several past acquisi-
tions and are now better
able to leverage our
extensive R&D expertise
in a number of key areas:
fluid purification for
gases (process or ambient) and liquids (cleaning 
applications and photochemical dispense), as well 
as contamination control systems and subsystems.

Looking ahead, we must 
continue to serve our cus-
tomers with superior quality
of service, on-time delivery
and unsurpassed customer
intimacy.

Looking ahead, we must continue to serve our customers
with superior quality of service, on-time delivery and
unsurpassed customer intimacy. Equally essential, we
must increase revenues from new products and culti-
vate new customers in ancillary markets. Both of these
initiatives are key goals for us.

To accelerate our product development, we are working
to build a close integration of our manufacturing engi-
neering resources along with our research teams and 
to drive an improved new product development process
throughout the organization.

We are building 2008 on the foundation we established
in 2007, as we strive to leverage the potential of the
Company’s powerful product and market platform.

Sincerely yours,

Jean-Marc Pandraud
Executive Vice President and Chief Operating Officer

Dear Shareholder: 

Our net sales for the twelve months ended December
31, 2007 were $626.2 million, versus $672.9 million in
the prior year. Net income was $44.4 million, or $0.36
per diluted share, which included a loss from discontin-
ued operations of $2.0 million.

Our financial results reflected the impact of several 
factors: the lower sales volume associated with an

Our strong cash flow and 
our solid balance sheet
enabled the purchase of
approximately $256 million
of the Company’s outstand-
ing shares.

increasingly challenging
macroeconomic and
industry environment; 
the costs associated with
the continuing shift of our
manufacturing operations
from North America to
Asia; and an increasingly
competitive environment for our products, especially
our microenvironment product offerings. Although we
believe the effects from the weaker industry environ-
ment and the migration to Asia are short-term, we view
the pressures associated with the increase in competi-
tion as a fact of life. 

To contend with these pressures, in 2007 we continued 
to make long-term strategic investments in our busi-
ness. We spent almost $40 million on research and
development activities, or 4% more than in 2006. On 
the manufacturing side, we continued to invest in our
operations by rationalizing our manufacturing footprint,
migrating manufacturing to Asia and implementing
LeanSigma across the Company. Finally, we have
invested in our human capital by attracting new 
leadership in Asia and by strengthening our out  -
sourcing capabilities.

Even with our sustained investments, Entegris gener-
ated $132 million in cash from operations in 2007. 
This strong cash flow and our solid balance sheet
enabled the purchase of approximately $256 million 
of the Company’s outstanding shares through a $250
million stock tender offer and an additional ongoing
$49 million stock buyback program. To date, we have
repurchased 31 million shares since the third quarter 
of 2006. 

Our cash flow also supported the acquisition of the 
specialty coatings business of Surmet Corporation in
August 2007. Acquisitions are a key part of our growth
strategy. Despite a challenging global financial credit
market, we recently secured a revolving credit facility 
of $230 million, which we intend to use to make 
selective acquisitions that will help us fill gaps in 
our existing product line, expand into new markets, 
and better serve our customers.

The year 2007 was my first as CFO of Entegris. As I pass
the one-year mark in that role, I remain confident in
the Company’s continued financial strength and stabil-
ity and in its potential to increase our profitability and
return on invested capital. As we enter 2008, I believe
that with aggressive cost management, prudent and
strategic deployment of our balance sheet, and our
intensified efforts to increase our asset utilization, we
have set the stage for achieving this goal and building
the Company’s long-term value for you.

Sincerely,

Greg Graves
Senior Vice President and Chief Financial Officer

Dear Shareholder:

The mission of Entegris’ operations team continues 
to be managing and optimizing the flow, quality and
cost of raw materials, finished goods and information
between our locations and trading partners. In 2007, 
we made significant progress toward these goals. By
year end, we had further improved delivery and quality
performance to our customers, accelerated the rede-
ployment of manufacturing assets to Asia, and increased
our manufacturing efficiency. 

Our manufacturing strategy is designed to make 
us more competitive by improving our Quality, Cost,
Delivery and Safety performance. This strategy centers
around three major initiatives: first, making LeanSigma
a way of life throughout the company; second, moving
closer to our customers; and third, consolidating our
manufacturing footprint. 

Our LeanSigma program was launched in early 2006,
and so far more than 130 employees across the com-
pany have received intensive training in continuous
improvement techniques. We are already seeing more
and more examples of how LeanSigma tools and
processes are helping reduce scrap and waste while
increasing efficiency and quality. 

During 2007, we made significant progress in our plan
to move product lines to our Kulim, Malaysia facility. 
By year end, three of the four transferred lines were
“production ready,” and we will begin ramping produc-
tion on two of the products as soon as we complete 
the necessary customer qualifications. These product
transfers are complex, but many Entegris employees
around the world are working very hard to make these
moves successful. 

The third major initiative is to increase our flexibility 
to better serve our customers. To do this, in recent
months we announced the closing or transfer of three
smaller manufacturing sites: our cleaning services 
facilities in Singapore and in Gilroy, California, as well
as our manufacturing operations in San Diego. Product
manufacturing and serv-
ices are being moved to
other existing Entegris
facilities in Kulim and
North America, or to 
contract manufacturers.
These programs complement a series of projects aimed
at migrating to a third-party logistics (3PL) model that
optimizes our stocking locations in order to minimize
freight expenses and delivery lead times. 

During 2007, we made 
significant progress in our
plan to move product lines to
our Kulim, Malaysia facility.

All of these steps are part of ongoing initiatives that 
will make the company stronger, and directly support 
the four cornerstones of our strategic plan: growth, 
customer focus, continuous improvement and a 
strong organization. 

I believe we are well on the way to seeing the fruits of
this strategy, which is aimed at achieving meaningful
improvement in our long-term return on invested capital. 

Sincerely yours,

Bertrand Loy
Executive Vice President and 
Chief Administrative Officer

SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Form 10-K

(Mark One)
È Annual report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the fiscal year ended December 31, 2007

‘ Transition report pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

or

For the transition period from

to
Commission File Number 000-30789

ENTEGRIS, INC.

(Exact name of registrant as specified in its charter)

Delaware
(State or Other Jurisdiction of
Incorporation or Organization)

41-1941551
(I.R.S. Employer
Identification No.)

3500 Lyman Boulevard, Chaska, MN 55318
(Address of principal executive offices and zip code)
(952) 556-3131
(Registrant’s telephone number, including area code)
Securities registered pursuant to Section 12(b) of the Act:
Title of Class
Common Stock, $0.01 Par Value
Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark if the registrant is a well known seasoned issuer, as defined in Rule 405 of the Securities

Act. È Yes ‘ No

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or 15(d) of the

Act. ‘ Yes È No

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the
Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file
such reports), and (2) has been subject to such filing requirements for the past 90 days. È Yes ‘ No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein and

will not be contained, to the best of registrant’s knowledge, in definitive proxy or information statements incorporated by reference
in Part III of Form 10-K or any amendment to this Form 10-K. ‘

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a
smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in
Rule 12b-2 of the Exchange Act. (Check one):
Large accelerated filer È
Non-accelerated filer ‘

Accelerated filer ‘
Smaller reporting company ‘

(Do not check if a smaller reporting company)
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange

Act). ‘ Yes È No

The aggregate market value of voting stock held by non-affiliates of the registrant, based on the last sale price of the Common

Stock on June 30, 2007, the last business day of registrant’s most recently completed second fiscal quarter, was $1,274,251,806.
Shares held by each officer and director of the registrant and by each person who owned 10 percent or more of the outstanding
Common Shares have been excluded from this computation in that such persons may be deemed to be affiliates of the registrant.
This determination of affiliate status for this purpose is not necessarily a conclusive determination for other purposes.

As of January 31, 2008, 115,053,492 shares of the registrant’s Common Stock were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Document

Incorporated into Form 10-K

Portions of the Definitive Proxy Statement, to be filed
subsequently

Part III

Item 1.

Business.

THE COMPANY

PART I

Entegris is a worldwide developer, manufacturer and supplier of materials integrity management solutions to the
microelectronics industry in general and to the semiconductor and data storage markets in particular. Our
materials integrity management solutions enable our customers to protect their investment in work-in-process
and finished devices by facilitating the safe handling, purity and precision processing of the critical materials
used in their manufacturing processes. Our solutions for the semiconductor industry assure the integrity of
materials as they are handled, stored, processed and transported throughout the semiconductor manufacturing
process, from raw silicon wafer manufacturing to packaging of completed integrated circuits. We have also
leveraged our core technology capabilities to extend our materials integrity management solutions to other high
technology applications such as the fuel cell market. Our products are also used to manufacture a range of other
products, such as flat panel displays, high-purity chemicals, photoresists, solar cells, gas lasers, optical and
magnetic storage devices and fiber optic cables. We sell our products worldwide through a direct sales force and
through distributors in selected regions.

We sell a diverse portfolio of products that includes more than 16,000 standard and customized products that we
believe provide the most comprehensive offering of materials integrity management products and services to the
microelectronics industry. Our products include:

• Microenvironment products, including wafer shippers, wafer transport and process carriers, reticle transport

and storage products, standard mechanical interface pods and work-in-process boxes. These products also
include shippers and trays that enable the transportation and handling of completed integrated circuits
during testing, assembly and packaging operations and that prevent the degradation and damage of magnetic
hard disk drives and read/write heads as they are processed and shipped.
Liquid micro-contamination control products including consumable membrane filters and purifiers and
roller brushes for post Chemical Mechanical Planarization (CMP) cleaning applications.
Liquid systems products including fluid-handling products such as valves, fittings, tubing, pipe, fluid
measuring and control products and containers that assure the consistent and safe delivery and storage of
sophisticated chemicals between chemical manufacturers and manufacturers’ point-of-use, as well as the
precision dispense of chemicals onto the wafer.
Gas micro-contamination products, including gas purification components and systems, that purify
semiconductor process gases and the ambient manufacturing environment.

•

•

•

Certain of these products are unit driven and consumable products that rely on the level of semiconductor
manufacturing activity to drive growth while others rely on expansion of manufacturing capacity to drive growth.
Our unit driven and consumable product class includes wafer shippers, disk-shipping containers and test
assembly and packaging products, membrane-based liquid filters and housings, metal-based gas filters and resin-
based gas purifiers. Our capital expense driven products include our process carriers that protect the integrity of
in-process wafers, components, systems and subsystems that use electro-mechanical, pressure differential and
related technologies, to permit semiconductor and other electronics manufacturers to monitor and control the
flow and condition of process liquids used in these manufacturing processes.

SIGNIFICANT DEVELOPMENTS

The Company was incorporated in Delaware in March 2005 in connection with a strategic merger of equals
transaction between Entegris, Inc., a Minnesota corporation (Entegris Minnesota), and Mykrolis Corporation, a
Delaware corporation (Mykrolis). Effective August 6, 2005, Entegris Minnesota and Mykrolis were each merged
into the Company with the Company as the surviving corporation to carry on the combined businesses. For more
information concerning the history of our predecessor companies see “Our History” below.

1

Effective January 1, 2006, the Company changed its fiscal year to the calendar year. As a result of this change,
during 2005 the Company had a four-month transition period following the end of its prior fiscal year, running
from August 28, 2005, through December 31, 2005. As a result, the financial periods presented in the Company’s
consolidated financial statements appearing starting at page F-1 below cover the following periods: the twelve
months ended December 31, 2007 and December 31, 2006; the four-month transition period ended December 31,
2005; and the twelve months ended August 27, 2005.

Certain financial data included in the following discussion of the Company’s business in Items 1 and 1A of this
report is shown for twelve-month periods ended December 31, 2007, 2006 and 2005 and is presented on a pro
forma combined basis.

In May 2007, the Company’s Board of Directors authorized a share repurchase program to acquire up to $250
million of the Company’s stock in a modified “Dutch Auction” self-tender offer. Pursuant to this transaction, which
was completed in June 2007, the Company purchased 21.1 million shares of its common stock at a price of $11.80
per share, plus costs to acquire the shares, for a total cash outlay of approximately $251.4 million. Following the
completion of this tender offer, the Company had approximately 115.7 million shares of common stock outstanding.
On November 15, 2007 the Company announced a share buyback program to repurchase up to $49 million of its
common stock in open market purchases under an existing stock repurchase authorization by the Company's Board
of Directors. The share buyback program, which commenced on December 1, 2007, was established in accordance
with the provisions of Rule 10b5-1 and Rule 10b-18 under the Securities Exchange Act of 1934.

INDUSTRY BACKGROUND

Semiconductors, or integrated circuits, are the building blocks of today’s electronics and the backbone of the
information age. The market for semiconductors has grown significantly over the past decade. This trend is
expected to continue due to increased internet usage and the continuing demand for applications in data
processing, wireless communications, broadband infrastructure, personal computers, handheld electronic devices
and other consumer electronics.

The semiconductor materials industry is comprised of a wide variety of materials and consumables that are used
throughout the semiconductor production process. The extensive and complex process of turning bare silicon
wafers into finished integrated circuits is dependent upon a variety of materials used repeatedly throughout the
manufacturing process, such as silicon, chemicals, gases and metals. The handling and purification of these
materials during the integrated circuit manufacturing process requires the use of a variety of products, such as
wafer shippers, wafer transport and process carriers, liquid and gas filters and purifiers, fluid and gas handling
components and integrated circuit trays. Semiconductor unit volume is the primary driver of the demand for
certain of these materials and products because they are used or consumed throughout the production process and
many are replenished or replaced on a regular basis. Demand for other products such as wafer transport and
process carriers and equipment products are driven primarily by capacity expansion.

The manufacture of semiconductors is a highly complex process that consists of two principal segments:
front-end processes and back-end processes. The front-end process begins with the delivery of raw silicon wafers
from wafer manufacturers to semiconductor manufacturers and requires hundreds of highly complex and
sensitive manufacturing steps, during which a variety of materials, including chemicals and gases, are introduced.
We offer products for each of the primary front-end process steps, which are listed below, as well as our
traditional businesses that provide products to transport in-process wafers between each of these steps.

Deposition. Deposition refers to placing layers of insulating or conductive materials on a wafer surface in thin
films that make up the circuit elements of semiconductor devices. The two main deposition processes are
physical vapor deposition, where a thin film is deposited on a wafer surface in a low-pressure gas environment,
and chemical vapor deposition, where a thin film is deposited on a wafer surface using a gas medium and a
chemical bonding process. In addition, electro-plating technology is utilized for the deposition of low resistance

2

conductive materials such as copper. The control of uniformity and thickness of these films through filtration and
purification of the fluids and materials used during the process is critical to the performance of the semiconductor
circuit and, consequently, the manufacturing yield.

Chemical Mechanical Planarization. CMP flattens, or planarizes, the topography of the film surface on the wafer
to permit the patterning of small features on the resulting smooth surface by the photolithography process.
Semiconductor manufacturers need our filtration and purification systems to maintain acceptable manufacturing
yields through the chemical mechanical planarization process by filtering the liquid slurries, which are solutions
containing abrasive particles in a chemical mixture, to remove oversized particles and contaminants that can
cause defects on a wafer’s surface while not affecting the functioning of the abrasive particles in the liquid
slurries. In addition, manufacturers use our consumable PVA roller brushes to clean the wafer after completion of
the CMP process to prepare the wafer for subsequent operations.

Photolithography. Photolithography is the process step that defines the patterns of the circuits to be built on the
chip. Before photolithography, a wafer is pre-coated with photoresist, a light-sensitive film composed of ultra-
high purity chemicals in liquid form. The photoresist is exposed to specific forms of radiation, such as ultraviolet
light, electrons or x-rays, to form patterns that eventually become the circuitry on the chip. This process is
repeated many times, using different patterns and interconnects between layers to form the complex, multi-layer
circuitry on a semiconductor chip. As device geometries decrease and wafer sizes increase, it is even more
critical that these photoresists are dispensed on to the chip with accurate thickness and uniformity, as well as with
low levels of contamination, and that the process gases are free of micro-contamination so that manufacturers can
achieve acceptable yields in the manufacturing process. Our liquid filtration and liquid dispense systems play a
critical role in assuring the pure, accurate and uniform dispense of photoresists on to the wafer. In addition, our
gas micro-contamination systems eliminate airborne amine contaminants that can disrupt effective
photolithography processes.

Etch and Resist Strip. Etch is the process of selectively removing precise areas of thin films that have been
deposited on the surface of a wafer. The hardened photoresist protects the remaining material that makes up the
circuits. During etch, specific areas of the film not covered by photoresist are removed to leave a desired circuit
pattern. Similarly, resist strip is a process of removing the photoresist material from the wafer after the desired
pattern has been placed on the wafer. Emerging advanced etch and resist strip applications require precisely
controlled gas chemistries and flow rates in order to achieve precise etch and resist strip characteristics. Our gas
filters and purifiers help assure the purity of these process gas streams.

Wet Cleaning. Ultra-high purity chemicals and photoresists of precise composition are used to clean the wafers,
to pattern circuit images and to remove photoresists after etch. Before processes such as photoresist coating, thin
film deposition, ion implantation, diffusion and oxidation, and after processes, such as ion implantation and etch,
the photoresists must be stripped off, and the wafer cleaned in multiple steps of chemical processes. To maintain
manufacturing yields and avoid defective products, these chemicals must be maintained at very high purity levels
without the presence of foreign material such as particles, ions or organic contaminants. Our liquid filters and
purifiers are used to assure the purity of these chemicals.

Our wafer and reticle carriers are high purity “mini-environments” which carry wafers between each of the above
process steps protecting them from damage and contamination during these transport operations. Our fluid
handling components assure the delivery of pure liquid chemicals to each of these process steps. Front end wafer
processing can involve hundreds of steps and take several weeks. As a result, a batch of 25 fully processed
wafers, the maximum number of wafers that can be transported in one of our products, can be worth several
million dollars. Since significant value is added to the wafer during each successive manufacturing step, it is
essential that the wafer be handled carefully and precisely to minimize damage. Thus, in the case of wafer
carriers, precise wafer positioning, highly reliable and predictable cassette interface dimensions and advanced
materials are crucial. The failure to prevent damage to wafers can severely impact integrated circuit performance,

3

render an integrated circuit inoperable or disrupt manufacturing operations. Our materials integrity management
products enable semiconductor manufacturers to: minimize contamination (semiconductor processing is now so
sensitive that ionic contamination in certain processing chemicals is measured in parts per trillion); protect
semiconductor devices from electrostatic discharge and shock; avoid process interruptions; prevent damage or
abrasion to wafers and materials during automated processing caused by contact with other materials or
equipment; prevent damage due to abrasion or vibration of work-in-process and finished goods during
transportation to and from customer and supplier facilities; and eliminate the dangers associated with handling
toxic chemicals.

Once the front-end manufacturing process is completed, finished wafers are transferred to back-end
manufacturers or assemblers. The back-end semiconductor manufacturing process consists of test, assembly and
packaging of finished wafers into integrated circuits. Our traditional materials integrity management products,
such as wafer shippers, wafer and reticle carriers and integrated circuit trays, facilitate the storage, transport,
processing and protection of wafers through these front-end and back-end manufacturing steps.

Semiconductor manufacturing has become increasingly complex in recent years as new technologies have been
introduced to enhance device performance and as larger wafer sizes have been introduced to increase production
efficiencies. This increasing complexity of semiconductor devices has resulted in a number of challenges
including the need for more complex, higher-precision liquid and gas delivery, measurement, control and
purification systems and subsystems in the front-end manufacturing processes and to improve time-to-market,
reduce manufacturing costs, improve production quality and enhance product reliability and long-term service
and support. To address these challenges, semiconductor equipment companies and device manufacturers are
outsourcing the design and manufacture of liquid delivery, measurement, control and purification systems,
subsystems, components, and consumables to us and to other well-established subsystem and component
companies that have worldwide presence and leading technologies. The design and performance of those liquid
delivery systems, subsystems, components and consumables are critical to the front-end semiconductor
manufacturing process because they directly affect cost of ownership and manufacturing yields. We continually
seek opportunities to work with our customers to address these challenges.

Also in response to these challenges and to achieve continued productivity gains, semiconductor manufacturers
have become increasingly focused on materials integrity management solutions that enable them to safely store,
handle, process and transport critical materials throughout the manufacturing process to minimize the potential
for damage or degradation to their materials and to protect their investment in processed wafers. The need for
efficient and reliable materials integrity management is particularly important as new materials are introduced
and as 300 mm semiconductor wafer manufacturing becomes a more prevalent manufacturing technology.
Processing 300 mm wafers, currently the largest wafer size in a manufacturing environment, is more costly and
more complex because of the larger size of these wafers. In addition, new materials and circuit shrinkage create
new contamination and material compatibility risks, rendering 300 mm wafers more vulnerable to damage or
contamination. These trends will present new and increasingly difficult shipping, transport, process and storage
challenges. We seek to bring our advanced polymer manufacturing and advanced tool design capabilities to bear
on these challenges to provide our customers with innovative materials integrity management solutions.

A key emerging market is the outsourced fab services market, which consists of logistics management, spares
and refurbishment, consumables and information technology. The market for outsource services remains largely
untapped, as currently these activities are performed primarily by the owners of fabs. A rapidly growing segment
within this market is materials integrity management services, which includes sub-micron cleaning and certified
re-use and recycling of materials management products. As the materials integrity management market continues
to grow, we believe that there is an increasing need for more effective and efficient application of materials
integrity management solutions through dedicated, outsourced service offerings.

Many of the processes used to manufacture semiconductors are also used to manufacture flat panel displays,
magnetic and optical storage devices and fiber optic cables for telecommunications, resulting in the need for
similar filtration, purification, control and measurement capabilities. We seek to leverage our products and
expertise in serving semiconductor applications to address these important market opportunities.

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OUR BUSINESS STRATEGY

Our objective is to be a global leader providing innovative materials integrity management solutions to the
semiconductor and ancillary markets. We intend to build upon our position as a worldwide developer,
manufacturer and supplier of liquid delivery systems, components and consumables used by semiconductor and
other electronic device manufacturers to grow our business in these and other high value-added manufacturing
process markets. Our strategy includes the following key elements:

Comprehensive and Diverse Product Offerings. The semiconductor manufacturing industry is driven by rapid
technological changes and intense competition. We believe that semiconductor manufacturers are seeking
process control suppliers who can provide a broad range of reliable, flexible and cost-effective products, as well
as the technological and application design expertise necessary to deliver effective solutions. Our comprehensive
product offering enables us to meet a broad range of customer needs and provide a single source of flexible
product offerings for semiconductor device and capital equipment manufacturers as they seek to consolidate their
supplier relationships to a smaller select group. In addition, we believe manufacturers of semiconductor tools are
looking to their suppliers for subsystems that provide more integrated functionality and seamlessly communicate
with other equipment. We believe our offering of consumables and equipment, as well as our ability to integrate
them, allows us to provide advanced subsystems.

Diversified Revenue Stream. We target a diversified revenue stream by balancing our sales of wafer transport and
process carriers as well as component and subsystem equipment products with sales of our unit-driven and
consumable products. Our unit-driven and consumable products provide a relatively more stable and recurring
source of revenue in an otherwise cyclical industry. Our capital expense driven products, which are generally
dependent upon such factors as the construction and expansion of semiconductor manufacturing facilities and the
retrofitting and renovation of existing semiconductor facilities, position us to benefit from increases in capital
spending that are typically more subject to the volatility of industry cycles.

Technology Leadership. With the emergence of smaller and more powerful semiconductor devices, and the
deployment of new materials and processes to produce them, we believe there is a need for greater materials
integrity management within the semiconductor fabrication process. We seek to extend our technology by
developing advanced products that address more stringent requirements for greater purification, protection and
transport of high value-added materials and for contamination control, fluid delivery and monitoring, and system
integration. We have continuously improved our products as our customers’ needs have evolved. For example:
we have developed proprietary materials blends, for use in our wafer handling product family which address the
contamination concerns of advanced semiconductor processing below 100 nanometers; we have also developed a
next-generation 300 mm front-opening unified pod utilizing those materials targeting the needs of 65 nm
production; and we have expanded upon our proprietary two-stage dispense technology with integrated filtration
for photoresist delivery, where the photoresist is filtered through one pump and precisely dispensed through a
second pump at a different flow rate to reduce defects on wafers.

Strong Customer Base. We have established ongoing relationships with many leading original equipment
manufacturers and materials suppliers in our key markets. These industry relationships have provided us with the
opportunity for significant collaboration with our customers at the product design stage which has facilitated our
ability to introduce new products and applications that meet our customers’ needs. For example, we work with
our key customers at the pre-design and design stages to identify and respond to their requests for current and
future generations of products. We target opportunities to offer new technologies in emerging applications, such
as copper plating, chemical mechanical planarization, wet-dry cleaning systems and photolithography. We
believe that our large customer base will continue to be an important source of new product development ideas.

Global Presence. We have established a global infrastructure of design, manufacturing, distribution, service and
support facilities to meet the needs of our customers. In addition, we may expand our global infrastructure, either
through acquisition or internal development, to accommodate increased demand or we may consolidate

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inefficient operations to optimize our manufacturing and other capabilities. For example, we have established
sales and service offices in China in anticipation of a growing semiconductor manufacturing base in that region.
As semiconductor and other electronic device manufacturers have become increasingly global, they have
required that suppliers offer comprehensive local repair and customer support services. In response to this trend
we transferred customer support and logistics activities to local regions in an effort to enhance our global
customer contact and awareness. We maintain our customer relationships through a combination of direct sales
and support personnel and selected independent sales representatives and distributors in Asia, Europe and the
Middle East.

Ancillary Markets. We plan to leverage our accumulated expertise in the semiconductor industry by developing
products for applications that employ similar production processes that utilize materials integrity management,
high-purity fluids and integrated dispense system technologies. Our products are used in manufacturing processes
outside of the semiconductor industry, including the manufacturing of flat panel displays, fuel cell components,
high-purity chemicals, photoresists, solar cells, gas lasers, optical and magnetic storage devices and fiber optic
cables. We plan to continue to identify and develop products that address materials integrity management and
advanced materials processing applications where fluid management plays a critical role. We believe that by
utilizing our technology to provide manufacturing solutions across multiple industries we are able to increase the
total available market for our products and reduce, to an extent, our exposure to the cyclicality of any particular
market.

Strategic Acquisitions, Partnerships and Related Transactions. We plan to pursue strategic acquisitions and
business partnerships that enable us to address gaps in our product offerings, secure new customers, diversify
into complementary product markets or broaden our technological capabilities and product offerings. As the
dynamics of the markets that we serve shift, we will re-evaluate the ability of our existing businesses to provide
value-added solutions to those markets in a manner that contributes to achieving our objectives; in the event that
we conclude that a business is not able to do this, we expect to restructure or replace that business. Our decisions
to divest three product lines in late 2005 and early 2006 and to divest our cleaning equipment business in 2007
were made pursuant to this strategy. Finally, we are continuously evaluating opportunities for strategic alliances
and joint development efforts with key customers and other industry leaders.

OUR PRODUCTS

Our product portfolio includes four major categories of products: microenvironment products, liquid
microcontamination control products, liquid subsystem products and gas micro-contamination products. These
product categories fall into two major product classes: unit-driven and consumable products, and capital-
spending driven products. Liquid micro-contamination control products are primarily unit-driven and
consumable products. Microenvironment products, liquid subsystem products and gas micro-contamination
products include both unit-driven and consumable products as well as capital spending driven products. Unit-
driven and consumable products, including service revenue, accounted for approximately 60%, 59% and 60% of
our net sales for calendar years 2007, 2006 and 2005, respectively, and capital-expense driven products
accounted for approximately 40%, 41% and 40% of our net sales for the calendar years 2007, 2006 and 2005,
respectively. There follows a detailed description of each of these four categories of products:

Microenvironment Products

Our microenvironment products preserve the integrity of wafers, reticles and electronic components at various
stages of transport, processing and storage. Our microenvironment products fall into two sub-categories, wafer
handling and finished electronic component products.

WAFER HANDLING PRODUCTS. We believe that we are a leading provider of critical shipping products that
preserve the integrity of raw silicon wafers as they are transported from wafer manufacturers to semiconductor
manufacturers. We lead the market with our extensive, high-volume line of Ultrapak® and Crystalpak® products

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which are supplied to wafer manufacturers in a full range of sizes covering 100, 125, 150 and 200 mm wafers.
We also offer a full-pitch front-opening shipping box, or FOSB, for the transportation and automated interface of
300 mm wafers. We offer a complete shipping system, including both wafer shipping containers as well as
secondary packaging that provide another level of protection for wafers.

We believe that we are a market leader in wafer handling products. We offer a wide variety of products that hold
and position wafers as they travel between each piece of equipment used in the automated manufacturing
process. These specialized carriers provide precise wafer positioning, wafer protection and highly reliable and
predictable cassette interfaces in automated fabs. Semiconductor manufacturers rely on our products to improve
yields by protecting wafers from abrasion, degradation and contamination during the manufacturing process. We
provide standard and customized products that meet the full spectrum of industry standards and customers’ wafer
handling needs including FOUPs, wafer transport and process carriers, SMIF pods and work-in-process boxes.
To meet our customers’ varying wafer processing and transport needs, we offer wafer carriers in a variety of
materials and in sizes ranging from 100 mm through 300 mm.

We believe we are the only global provider currently offering outsourcing programs for wafer and device
transportation and protection for both wafer manufacturing and wafer handling products. Our WaferCare® and
DeviceCare® services include product cleaning, certified re-use services for shipping products, on-site and
off-site product maintenance and optimization, and end-of-life recycling for our wafer, device and disk-handling
products. Re-use services can be customized depending on the customers needs to provide product cleaning,
logistics, recovery, certification and supply solutions for our products.

FINISHED ELECTRONIC COMPONENT PRODUCTS. Rapidly changing packaging strategies for semiconductor
applications are creating new materials management challenges for back-end manufacturers. We offer chip and
matrix trays as well as carriers for bare die handling and integrated circuits. Our materials management products
are compatible with industry standards and available in a wide range of sizes with various feature sets. Our
standard trays offer dimensional stability and permanent electrostatic discharge protection. Our trays also offer a
number of features including custom designs to minimize die movement and contact; shelves and pedestals to
minimize direct die contact, special pocket features to handle various surface finishes to eliminate die sticking;
and other features for automated or manual die placement and removal. In addition, we support our product line
with a full range of accessories to address specific needs such as static control, cleaning, chip washing and other
related materials management requirements. To better address this market, we have established ictray.com, a
website which allows new and existing customers to select from our full range of standard and custom integrated
circuit trays.

Like the semiconductor industry, the data storage market continues to face new challenges and deploy new
technologies at an accelerating rate. We provide materials management products and solutions to manage two
critical sectors of this industry: magnetic disks and the read/write heads used to read and write today’s higher
density disks. Because both of these hard disk drive components are instrumental in the transition to more
powerful storage solutions, we offer products that carefully protect and maintain the integrity of these
components during their processing, storage and shipment. Our product offerings for magnetic hard disk drives
include process carriers, boxes, packages, tools and shippers for aluminum and other disk substrates. Our optical
hard disk drive products include stamper cases, process carriers, boxes and glass master carriers. Our read/write
head products include transport trays, carriers, handles, boxes, individual disk substrate packages and
accessories.

Liquid Micro-contamination Control Products

Liquid processing occurs during multiple manufacturing steps including photolithography, deposition,
planarization and surface etching and cleaning. The fluids that are used include various mixtures of acids, bases,
solvents, slurries and photochemicals, which in turn are used over a broad range of operating conditions,
including temperatures from 5 degrees Celsius up to 180 degrees Celsius. The design and performance of our

7

liquid filtration and purification products are critical to the semiconductor manufacturing process because they
directly affect the cost of ownership and manufacturing yield. Specially designed proprietary filters remove
sub-micron sized particles and bubbles from the different fluid streams that are used in the manufacturing
process. Some of our filters are constructed with ultra-high molecular weight polyethylene flat sheet membranes
that offer improved bubble clearance and gel removal, either of which can cause defects in the wafers if not
removed. Our low hold-up volume disposable filters, with flat sheet membranes, use our Connectology®
technology to allow filter changes in less than a minute, significantly faster than conventional filters, to reduce
the amount of expensive chemicals lost each time a filter is changed and to minimize operator exposure to
hazardous solvents and vapors during changeout. We also offer a line of consumable PVA roller brush products
to clean the wafer following the chemical mechanical planarization process. Our unique Planarcore® PVA roller
brush is molded on the core to allow easy installation that reduces tool downtime and a dimensionally stable
product that provides consistent wafer-to-wafer cleaning performance.

Liquid Systems

CHEMICAL DELIVERY PRODUCTS. Chemicals spend most of their time in contact with fluid storage and
management distribution systems, so it is critical for fluid storage and handling components to resist these
chemicals and avoid contributing contaminants to the fluid stream. We offer chemical delivery products that
allow the consistent and safe delivery of sophisticated chemicals from the chemical manufacturer to the
point-of-use in the semiconductor fab. Most of these products are made from perfluoroalkoxy or PFA, a
fluoropolymer resin widely used in the semiconductor industry because of its high purity and inertness to
chemicals. The innovative design and reliable performance of our products and systems under the most stringent
of process conditions has made us a recognized leader in high-purity fluid transfer products and systems. Both
semiconductor manufacturers and semiconductor OEMs use our chemical delivery products and systems. Our
comprehensive product line provides our customers with a single source provider for their chemical storage and
management needs throughout the manufacturing process. Our chemical delivery products include valves,
fittings, tubing, pipe, chemical containers and custom fabricated products for high-purity chemical applications.

LIQUID DELIVERY AND CONTROL SYSTEMS. Our proprietary photochemical filtration and dispense systems
integrate our patented two-stage, filter device and valve control technologies. We believe that we offer the
microelectronics industry the only dispense systems with integrated filtration capability and that our proprietary
patented two-stage technology has a significant advantage over conventional single-stage technology. Our
two-stage technology permits the filtering and dispense functions to operate independently so that filtering and
dispensing of photochemicals can occur at different rates, reducing the differential pressure across the filter,
conserving expensive photochemicals and resulting in reduced defects in wafers. As described above, we offer a
line of proprietary filters specifically designed to efficiently connect with these systems. Our patented digital
valve control technology improves chemical uniformity on wafers and improves ease of optimized system
operation. In addition, our integrated high-precision liquid dispense systems enable uniform application of
photoresists for the spin-coating process, where uniformity is measured in units of Angstroms, a tiny fraction of
the thickness of a human hair.

We offer a wide variety of measurement and control products for high-purity and corrosive applications. For
electronic measurement and control of liquids, we provide a complete line of pressure and flow measurement and
control products as well as all-plastic capacitance sensors for leak detection, valve position, chemical level and
other measurements. We also offer a complete line of sight tube-style flowmeters and mechanical gauge pressure
measurement products.

Gas Micro-Contamination Products

Our Wafergard®, ChamberGard™ and Waferpure® particle and molecular filtration products purify the gas
entering the process chamber in order to eliminate system and wafer problems due to particulate, atmospheric
and chemical contaminants. These filters are able to retain all particles 0.003 microns and larger. Our metal

8

filters, such as stainless steel and nickel filters, reduce outgassing and improve corrosion resistance. Our
Waferpure® and Aeronex Gatekeeper® purifiers chemically react with and absorb volatile contaminants, such as
oxygen and water, to prevent contamination and our ChamberGard™ vent diffusers reduce particle contamination
and processing cycle times. We offer a wide variety of gas purification products to meet the stringent
requirements of semiconductor processing. Our Aeronex Gas Purification Systems contain dual-resin beds,
providing a continuous supply of purified gas without process interruption. These gas purification systems are
capable of handling higher flow rates and longer duty cycles than cartridge purifiers. Our Extraction products
include filter housings and hybrid media chemical air filters which purify air entering exposure tool and process
tool enclosures and remove airborne molecular contaminants.

In addition to the above four product categories, we are pursuing a number of highly engineered, advanced
materials product initiatives including: an initiative to transfer our advanced polymer knowledge into the fuel cell
market, where the properties of highly engineered polymers can be used in various products and manufacturing
processes; and a high-performance specialty coatings business acquired during 2007 where critical components
used in semiconductor and other high-technology manufacturing operations are coated by means of a
low-temperature plasma-assisted chemical vapor deposition process to provide corrosion and abrasion resistance
and desired conductivity and hydrophobicity properties.

Worldwide Applications Development and Field Support Capabilities

We provide strong technical support to our customers through local service groups and engineers consisting of
field applications engineers, technical service groups, applications development groups and training capabilities.
Our field applications engineers, located in the United States and in approximately ten other countries, work
directly with our customers on product qualification and process improvements in their facilities. In addition, in
response to customer needs for local technical service and fast turn-around time, we maintain regional
applications laboratories. Our applications laboratories maintain process equipment that simulate customers’
applications and industry test standards and provide product evaluation, technical support and complaint
resolution for our customers.

OUR CUSTOMERS AND MARKETS

Our major customer groups include integrated circuit device manufacturers, original equipment manufacturers
that provide equipment to integrated circuit device manufacturers, gas and chemical manufacturing companies
and manufacturers of high-precision electronics.

Our most significant customers based on sales in fiscal 2007 include industry leaders, such as AMD, Dainippon
Screen Manufacturing Co., Ltd., IBM, Komag, Inc., Motorola, Samsung America Inc., Seagate Technology,
Siltronic AG, SUMCO Oregon Corp., Taiwan Semiconductor Manufacturing Co. Ltd., and UMC Group. We also
sell our products to flat panel display original equipment manufacturers, materials suppliers and end-users. The
major manufacturers for flat panel displays and flat panel display equipment are concentrated in Japan, Korea
and other parts of Asia.

In calendar years 2007, 2006 and 2005, net sales to our top ten customers accounted for approximately 28%, 27%
and 33%, respectively, of our net sales. During those same periods no single customer accounted for more than
10% of our net sales and international net sales represented approximately 74%, 71% and 71%, respectively, of
our net sales. Over 2,700 customers purchased products from us during 2007.

We may enter into supply agreements with our customers to govern the conduct of our business with our
customers, including the manufacture of our products. These agreements generally have a term of one to three
years, but do not contain any long-term purchase commitments. Instead, we work closely with our customers to
develop non-binding forecasts of the future volume of orders. However, customers may cancel their orders,
change production quantities from forecasted volumes or delay production for a number of reasons beyond our
control.

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SALES AND MARKETING

We sell our products worldwide primarily through our direct sales force located in offices in all major
semiconductor markets, as well as through independent distributors elsewhere. As of December 31, 2007, our
sales and marketing force consisted of approximately 460 employees worldwide. Our direct sales force is
supplemented by independent sales representatives and agents.

Our marketing efforts focus on our “push/pull” marketing strategy in order to maximize our selling opportunities.
We work with original equipment manufacturers to persuade them to design tools that require our products and
we create end-user “pull” demand by persuading semiconductor manufacturers to specify our products. Our
industry relationships have provided us with the opportunity for significant collaboration with our customers at
the product design stage that has facilitated our ability to introduce new products and applications that meet our
customers’ needs. In addition, we are constantly identifying for our customers the variety of analytical,
purification and process control challenges that may be addressed by our products. Further, we adapt our
products and technologies to resolve process control issues identified by our customers. Our sales representatives
provide our customers with worldwide support and information about our products.

We believe that our technical support services are important to our marketing efforts. These services include
assisting in defining a customer’s needs, evaluating alternative products, designing a specific system to perform
the desired separation, training users and assisting customers in compliance with relevant government
regulations. In addition, we maintain a network of service centers located in the United States and in key
international markets to support our products.

COMPETITION

The market for our products is highly competitive. While price is an important factor, we compete primarily on
the basis of the following factors:

•

•

•

•

•

historical customer relationships;

technical expertise;

product quality and performance;

total cost of ownership;

customer service and support;

•

•

•

•

breadth of product line;

breadth of geographic presence;

advanced manufacturing capabilities; and

after-sales service.

We believe that we compete favorably with respect to all of the factors listed above, but we cannot assure you
that we will continue to do so. We believe that our key competitive strengths include our broad product line, the
low total cost of ownership of our products, our ability to provide our customers with quick order fulfillment and
our technical expertise. However, our competitive position varies depending on the market segment and specific
product areas within these segments. While we have longstanding relationships with a number of semiconductor
and other electronic device manufacturers, we also face significant competition from companies that have
longstanding relationships with other semiconductor and electronic device manufacturers and, as a result, have
been able to have their products specified by those customers for use in manufacturers’ fabrication facilities. In
the markets for our consumable products, we believe that our differentiated membrane and materials integrity
management technologies, strong supply chain capabilities, that allow us to provide our customers with quick
order fulfillment, and technical expertise, which enables us to develop membranes to meet specific customer
needs and assist our customers in improving the functionality of our membranes for particular applications, allow
us to compete favorably. In these markets our competitors compete against us on the basis of price, as well as
alternative membrane technology having different functionality, manufacturing capabilities and breadth of
geographic presence.

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The market for our products is highly fragmented, and we compete with a number of different companies. Our
microenvironment product lines face competition largely on a product-by-product basis. We face competition
from companies such as Miraial (formerly Kakizaki), Dainichi and Shin-Etsu Polymer and from regional
suppliers such as e.PAK Resources Pte. Ltd. These companies compete with us primarily in 200 mm and 300 mm
applications. Our liquid systems products also face worldwide competition from companies such as Saint-
Gobain, Parker, Gemu, Donaldson and Iwaki Co., Ltd. In finished electronic components products, we compete
with companies such as ITW/Camtex, Peak International and 3M and from regional suppliers. Our liquid micro-
contamination control products compete with product offerings from a wide range of companies including both
large companies such as Pall Corporation as well as small Asian filter manufacturers. In gas micro-contamination
products we compete with companies such as SAES Puregas and Mott Metallurgical Corporation. Some of our
competitors are larger and have greater resources than we do. In some cases, our competitors are smaller than us,
but well-established in specific product niches. We believe that none of our competitors competes with us across
all of our product offerings and that, within the markets that we serve, we offer a broader line of products, make
use of a wider range of process control technologies and address a broader range of applications than any single
competitor.

RESEARCH AND DEVELOPMENT

Our aggregate research and development expenses in calendar years 2007, 2006 and 2005 were $39.7 million,
$38.1 million and $36.1 million, respectively. As of December 31, 2007, we had approximately 277 employees
in engineering, research and development. In addition, we have followed a practice of supplementing our internal
research and development efforts by licensing technology from unaffiliated third parties and/or acquiring
distribution rights with respect thereto when we believe it is in our long-term interests to do so.

To meet the global needs of our customers, we have research and development capabilities in Minnesota,
Massachusetts, Japan and Malaysia. Our research and development efforts are directed toward developing and
improving our technology platforms for semiconductor and advanced processing applications and identifying and
developing products for new applications for which fluid management plays a critical role.

We use sophisticated methodologies to research, develop and characterize our materials and products. Our
materials technology lab is equipped to analyze the physical, rheological, thermal, chemical and compositional
nature of the polymers we use. Our materials lab includes standard and advanced polymer analysis equipment
such as inductively coupled plasma mass spectrometry (ICP/MS), inductively coupled plasma atomic emission
spectrometry (ICP/AES), fourier transform infrared spectroscopy (FTIR) and automated thermal desorption gas
chromatography/mass spectrometry (ATD-GC/MS). This advanced analysis equipment allows us to detect
contaminants in materials that could harm the semiconductor manufacturing process to levels as low as parts per
billion, and in many cases parts per trillion.

Our capabilities to test and characterize our materials and products are focused on continuously reducing risks
and threats to the integrity of the critical materials that our customers use in their manufacturing processes. We
expect that technology and product research and development will continue to represent an important element in
our ability to develop and characterize our materials and products.

Key elements of our research and development expenditures over the past three years have included the
development of new product platforms to meet the manufacturing needs for 90, 65, 45 and 32 nanometer
semiconductor devices. Driven by the proliferation of new materials and chemicals in the manufacturing
processes and increased needs for tighter process control for 300mm wafers, investments were made for new
contamination control products in the area of copper interconnects, deep ultra-violet (DUV) photolithography;
and chemical and gas management technologies for advanced wafer cleans, deposition and etch equipment.
Additional investments were made in the area of advanced process control, monitoring and diagnostics
capabilities for future generations of semiconductor manufacturing processes. Our employees also work closely
with our customers’ development personnel. These relationships help us identify and define future technical

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needs on which to focus our research and development efforts. In addition, we participate in Semiconductor
Equipment and Materials International (SEMI), a consortium of semiconductor equipment suppliers. We also
support research at academic and other institutions targeted at advances in materials science and semiconductor
process development.

MANUFACTURING

Our customers rely on our products to assure the integrity of the critical materials used in their manufacturing
processes by providing dimensional precision and stability, cleanliness and consistent performance. Our ability to
meet our customers’ expectations, combined with our substantial investments in worldwide manufacturing
capacity, position us to respond to the increasing materials integrity management demands of the
microelectronics industry and other industries that require similar levels of materials integrity.

To meet our customer needs worldwide, we have established an extensive global manufacturing network with
manufacturing facilities in the United States, Japan and Malaysia. Because we work in an industry where
contamination control is paramount, we maintain Class 100 to Class 10,000 cleanrooms for manufacturing and
assembly. We believe that our worldwide manufacturing operations and our advanced manufacturing capabilities
are important competitive advantages. Our advanced manufacturing capabilities include:

•

•

•

•

•

Injection Molding. Our manufacturing expertise is based on our long experience with injection molding.
Using molds produced from computer-aided processes, our manufacturing technicians utilize specialized
injection molding equipment and operate within specific protocols and procedures established to
consistently produce precision products.

Extrusion. Extrusion is accomplished through the use of heat and force from a screw to melt solid polymer
pellets in a cylinder and then forcing the resulting melt through a die to produce tubing and pipe. We have
established contamination-free on-line laser marking and measurement techniques to properly identify
products during the extrusion process and ensure consistency in overall dimension and wall thickness. In
addition, we use extrusion technology to extrude a polymer mix into flat sheet and hollow fiber membranes.

Blow Molding. Blow molding consists of the use of heat and force from a screw to melt solid polymer
pellets in a cylinder and then forcing the melt through a die to create a hollow tube. The molten tube is
clamped in a mold and expanded with pressurized gas until it takes the shape of the mold. We utilize
advanced three-layer processing to manufacture 55 gallon drums, leading to cost savings while
simultaneously assuring durability, strength and purity.

Rotational Molding. Rotational molding is accomplished by the placing of a solid polymer powder in a
mold, placing the mold in an oven and rotating the mold on two axes so that the melting polymer coats the
entire surface of the mold. This forms a part in the shape of the mold upon cooling. We use rotational
molding in manufacturing containers up to 5,000 liters. Our rotational molding expertise has provided rapid
market access for our current fluoropolymer sheet lining manufacturing business.

Compression Molding. In compression molding, thermoset polymers are processed. Today, we use this
manufacturing process primarily for manufacturing bipolar plates and end-plates for the fuel cell market.
We use the same expertise as in injection molding to assure a consistently produced precision product.

• Membrane Casting. We cast membrane by extruding a polymer into flat sheet or hollow fiber format that is
passed through a chamber with controlled atmospheric conditions to control the development of voids or
pores in the membrane. Once cast, the membrane is subjected to solvent extraction and annealing steps. The
various properties of the membranes that we offer are developed during subsequent process steps.

•

Cartridge Manufacturing. We fabricate the membrane we manufacture as well as membranes manufactured
by others into finished filtration cartridges in a variety of configurations. The fabrication process involves
membrane processing into pleated and other configurations around a central core and enclosing it in
framework of end caps and protective screening for use in fabricated cartridge housings. We also
manufacture filter cartridges that are integrated into their own housings and incorporate our patented
Connectology® quick connect technology.

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• Machining. Machining consists of the use of computer-controlled equipment to create shapes, such as valve
bodies, out of solid polymer blocks or rods. Our computerized machining capabilities enable speed and
repeatability in volume manufacturing of our machined products, particularly products utilized in chemical
delivery applications.

•

•

Assembly. We have established protocols, flow charts, work instructions and quality assurance procedures
to assure proper assembly of component parts. The extensive use of robotics throughout our facilities
reduces labor costs, diminishes the possibility of contamination and assures process consistency.

Tool Making. We employ approximately 60 tool development and tool-making staff at locations in the
United States and Malaysia. Our toolmakers produce the majority of the tools we use throughout the world.

We have made significant investments in systems and equipment to create innovative products and tool designs.
Our computer-aided design (CAD) equipment allows us to develop three-dimensional electronic models of
desired customer products to guide design and tool-making activities. Our CAD equipment also aids in the rapid
prototyping of products.

We also use computer-automated engineering in the context of mold flow analysis. Beginning with a three-
dimensional CAD model, mold flow analysis is used to visualize and simulate how our molds will fill. The mold
flow analysis techniques cut the time needed to bring a new product to market because of the reduced need for
sampling and development. Also, our CAD equipment can create a virtual part with specific geometries, which
drives subsequent tool design, tool manufacturing, mold flow analysis and performance simulation.

In conjunction with our three-dimensional product designs, we use finite element analysis software to simulate
the application of a variety of forces or pressures to observe what will happen during product use. This analysis
helps us anticipate forces that affect our products under various conditions. The program also assists our product
designers by measuring anticipated stresses against known material strengths and establishing proper margins of
safety.

PATENTS AND OTHER INTELLECTUAL PROPERTY RIGHTS

We rely on a combination of patent, copyright, trademark and trade secret laws and license agreements to
establish and protect our proprietary rights. As of February 1, 2008 our patent portfolio included 328 current U.S.
patents, 720 current foreign patents, including counterparts to U.S. filings, 124 pending U.S. patent applications,
63 pending filings under the Patent Cooperation Treaty not yet nationalized and 793 pending foreign patent
applications. While we believe that patents may be important for aspects of our business, we believe that our
success also depends more upon close customer contact, innovation, technological expertise, responsiveness and
worldwide distribution. Additionally, while our patented technology may delay or deter a competitor in offering
a competing product, we do not believe that our patent portfolio functions as a barrier to entry for any of our
competitors. In addition, while we license and will continue to license technology used in the manufacture and
distribution of products from third parties, except as described below, these licenses are not currently related to
any of our core product technology. In connection with the separation of Mykrolis from Millipore Corporation,
Mykrolis was granted licenses to certain Millipore technology. Our use of Millipore’s technology is governed by
the agreements governing the separation of Mykrolis from Millipore, which prohibit our use of Millipore’s
technology in fields of use outside the microelectronics industry. In general, where technology is used both by
Millipore in the manufacture of its products and by us in the manufacture of our products, Millipore retained
ownership of the technology and granted us a license to use the technology, limited to fields of use in the
microelectronics industry. These restrictions could limit our ability to expand our business into markets outside
the microelectronics industry, which could limit our growth.

We require each of our employees, including our executive officers, to enter into standard agreements pursuant to
which the employee agrees to keep confidential all of our proprietary information and to assign to us all
inventions made while employed by us.

13

The patent position of any manufacturer, including us, is subject to uncertainties and may involve complex legal
and factual issues. Litigation is currently necessary and will likely be necessary in the future to enforce our
patents and other intellectual property rights or to defend ourselves against claims of infringement or invalidity.
The steps that we have taken in seeking patents and other intellectual property protections may prove inadequate
to deter misappropriation of our technology and information. In addition, our competitors may independently
develop technologies that are substantially equivalent or superior to our technology.

GOVERNMENTAL REGULATION

Our operations are subject to federal, state and local regulatory requirements relating to environmental, waste
management and health and safety matters, including measures relating to the release, use, storage, treatment,
transportation, discharge, disposal and remediation of contaminants, hazardous substances and wastes, as well as
practices and procedures applicable to the construction and operation of our plants. There can be no assurance
that we will not incur material costs and liabilities or that our past or future operations will not result in exposure
to injury or claims of injury by employees or the public. Although some risk of costs and liabilities related to
these matters is inherent in our business, as with many similar businesses, we believe that our business is
operated in substantial compliance with applicable regulations. However, new, modified or more stringent
requirements or enforcement policies could be adopted, which could adversely affect us. While we expect that
capital expenditures will be necessary to assure that any new manufacturing facility is in compliance with
environmental and health and safety laws, we do not expect these expenditures to be material. Otherwise, we are
not presently aware of any facts or circumstances that would cause us to incur significant liabilities in the future
related to environmental, health and safety law compliance.

EMPLOYEES

As of February 1, 2008, we had approximately 2,781 full-time employees, including approximately 277 in
engineering, research and development and approximately 460 in sales and marketing as well as approximately
241 temporary employees. Given the variability of business cycles in the semiconductor industry and the quick
response time required by our customers, it is critical that we be able to quickly adjust the size of our production
staff to maximize efficiency. Therefore, we use skilled temporary labor as required.

None of our employees are represented by a labor union or covered by a collective bargaining agreement other
than statutorily mandated programs in European countries.

INFORMATION ABOUT OUR OPERATING SEGMENT

The Company operates in one reportable business segment that develops, manufactures and sells consumables
and capital equipment products to semiconductor manufacturing companies and other companies using similar
manufacturing processes, as well as OEM suppliers to those companies. In calendar years 2007, 2006 and 2005
approximately 74%, 71% and 71%, respectively, of our net sales were made to customers outside North America.
Industry and geographic segment information is discussed in Note 19 to the Entegris, Inc. Consolidated Financial
Statements (the “Financial Statements”) included in response to Item 8 below, which Note is hereby incorporated
herein by reference.

OTHER INFORMATION

On July 27, 2005, our Board of Directors adopted a shareholder rights plan (the “Rights Plan”) pursuant to which
Entegris declared a dividend on August 8, 2005 to its shareholders of record on that date of one preferred share
purchase right (a “Right”) for each share of Entegris common stock owned on August 8, 2005. Each Right
entitles the holder to purchase one-hundredth of a share of a series of preferred stock at an exercise price of $50,
subject to adjustment as provided in the Rights Plan. The Rights Plan is designed to protect Entegris’
shareholders from attempts by others to acquire Entegris on terms or by using tactics that could deny all

14

shareholders the opportunity to realize the full value of their investment. The Rights are attached to the shares of
our common stock until certain triggering events specified in the Rights Agreement occur, including, unless
approved by our Board of Directors, an acquisition by a person or group of specified levels of beneficial
ownership of our common stock or a tender offer for our common stock. Upon the occurrence of any of these
triggering events, the Rights authorize the holders to purchase at the then-current exercise price for the Rights,
that number of shares of our common stock having a market value equal to twice the exercise price. The Rights
are redeemable by us for $0.01 and will expire on August 8, 2015. One of the events which will trigger the
Rights is the acquisition, or commencement of a tender offer, by a person (an Acquiring Person, as defined in the
shareholder rights plan), other than Entegris or any of our subsidiaries or employee benefit plans, of 15% or more
of the outstanding shares of our common stock. An Acquiring Person may not exercise a Right.

Entegris’ products are made from a wide variety of raw materials which are generally available in quantity from
alternate sources of supply. However, certain materials included in the Company’s products, such as polymer
resins and certain membranes, are obtained from a single source or a limited group of suppliers. Although the
Company seeks to reduce dependence on those sole and limited source suppliers, the partial or complete loss of
these sources could interrupt our manufacturing operations and result in an adverse effect on the Company’s
results of operations. Furthermore, a significant increase in the price of one or more of these components could
also adversely affect the Company’s results of operations.

OUR HISTORY

Effective August 6, 2005 Entegris, Inc., a Minnesota corporation, and Mykrolis Corporation, a Delaware
corporation, completed a strategic merger of equals transaction, pursuant to which they were each merged into
the Company to carry on the combined businesses. Pursuant to this merger each stockholder of Entegris
Minnesota received one share of Entegris for each Entegris Minnesota share held and each Mykrolis stockholder
received 1.39 shares of Entegris for each Mykrolis share held. Immediately following the Merger, our Board of
Directors was comprised of five directors from Entegris Minnesota and five directors from Mykrolis. Our
management team is drawn from both Mykrolis and Entegris Minnesota. Our executive offices are located at
3500 Lyman Boulevard, Chaska, Minnesota 55318, and our telephone number is (952) 556-3131. Unless the
context otherwise requires, the terms “Entegris”, “we”, “our”, or the “Company” mean Entegris, Inc., a Delaware
corporation, and its subsidiaries; the term “Mykrolis” means Mykrolis Corporation and its subsidiaries when
referring to periods prior to August 6, 2005; “Entegris Minnesota” means Entegris, Inc., a Minnesota corporation
and its subsidiaries other than Entegris when referring to periods prior to August 6, 2005; and the term “Merger”
refers to the transactions effected on August 6, 2005 in which Entegris Minnesota merged into Entegris, followed
by the merger of Mykrolis into Entegris.

We were incorporated in Delaware in March 2005 under the name Eagle DE, Inc. as a wholly owned subsidiary
of Entegris Minnesota. Effective August 6, 2005 Entegris Minnesota merged into us in a reincorporation merger
of which we were the surviving corporation. Immediately following that merger, Mykrolis merged into us and
our name was changed to Entegris, Inc. Our stock is traded on the NASDAQ National Market System under the
symbol “ENTG”.

Entegris Minnesota was incorporated in June 1999 to effect the business combination of Fluoroware, Inc., which
began operating in 1966, and EMPAK, Inc., which began operating in 1980. On July 10, 2000 Entegris
Minnesota completed an initial public offering of approximately 19% of the total shares of the Company’s
common stock outstanding.

Mykrolis was organized as a Delaware corporation on October 16, 2000 under the name Millipore MicroElectronics,
Inc. in connection with the spin-off by Millipore Corporation of its microelectronics business unit. On March 31,
2001, Millipore effected the separation of the Mykrolis business from Millipore’s business by transferring to
Mykrolis substantially all of the assets and liabilities associated with its microelectronics business. On August 9,
2001 Mykrolis completed an initial public offering of approximately 18% of the total shares of the Company’s
common stock outstanding. On February 27, 2002, Millipore completed the spin-off of Mykrolis by distributing to
its stockholders the 82% of the Mykrolis common stock that it held following the Mykrolis initial public offering.

15

EXECUTIVE OFFICERS

The following is a list, as of December 31, 2007, of our Executive Officers. All of the Executive Officers listed
below were elected to serve until the first Directors Meeting following the 2008 Annual Stockholders Meeting.

Name

Age Office

CORPORATE OFFICERS

Gideon Argov . . . . . . . . . . . .

51 President & Chief Executive Officer

Gregory B. Graves . . . . . . . . .

47

Senior Vice President, Chief Financial Officer & Treasurer

Jean-Marc Pandraud . . . . . . .

54 Executive Vice President & Chief Operating Officer

Bertrand Loy . . . . . . . . . . . . .

42 Executive Vice President & Chief Administrative Officer

Peter W. Walcott . . . . . . . . . .

John J. Murphy . . . . . . . . . . .

John Goodman . . . . . . . . . . . .

61

55

47

Senior Vice President, Secretary & General Counsel

Senior Vice President Human Resources

Senior Vice President Chief Technology & Innovation Officer

* With either the Company or a predecessor company

First Elected
To Office*

2004

2002

2001

2001

2001

2005

2005

Gideon Argov has been our President and Chief Executive Officer and a director since the effectiveness of our
merger with Mykrolis. He served as the Chief Executive Officer and a director of Mykrolis since November
2004. Prior to joining Mykrolis, Mr. Argov was a Special Limited Partner at Parthenon Capital, a Boston-based
private equity partnership, since 2001. He served as Chairman, Chief Executive Officer and President of
Kollmorgen Corporation from 1991 to 2000. From 1988 to 1991 he served as Chief Executive Officer of High
Voltage Engineering Corporation. Prior to 1988, he led consulting engagement teams at Bain and Company. He
is a director of Interline Brands, Inc. and Fundtech Corporation.

Jean-Marc Pandraud has been our Executive Vice President and Chief Operating Officer since the effectiveness
of the merger with Mykrolis. He served as the President and Chief Operating Officer of Mykrolis since January
2001. Prior to that he served as Vice President and General Manager of the Microelectronics Divisions of
Millipore, a position he had held since July 1999. From 1994 until 1999, Mr. Pandraud served as the Vice
President and General Manager of Millipore’s Laboratory Water Division and was also Regional Manager of
Millipore’s Latin American operations from 1997 until 1999. Mr. Pandraud also served as the Managing Director
of Millipore’s French subsidiary and as European General Manager for the Millipore Analytical Division from
1988 until 1994.

Bertrand Loy has been our Executive Vice President and Chief Administrative Officer since the effectiveness of
the merger with Mykrolis. He served as the Vice President and Chief Financial Officer of Mykrolis since January
2001. Prior to that, Mr. Loy served as the Chief Information Officer of Millipore from April 1999 until
December 2000. From 1995 until 1999, he served as the Division Controller for Millipore’s Laboratory Water
Division. From 1989 until 1995, Mr. Loy served Sandoz Pharmaceuticals (now Novartis) in a variety of
financial, audit and controller positions located in Europe, Central America and Japan.

Gregory B. Graves has been our Senior Vice President and Chief Financial Officer since April of 2007; prior to
that he served as Senior Vice President Strategic Planning & Business Development since the effectiveness of the
merger with Mykrolis. Mr. Graves served as the Chief Business Development Officer of Entegris Minnesota
since September 2002 and from September 2003 until August 2004 he also served as Senior Vice President of
Finance. Prior to joining Entegris Minnesota, Mr. Graves held positions in investment banking and corporate
development, including at U.S. Bancorp Piper Jaffray from June 1998 to August 2002 and at Dain Rauscher from
October 1996 to May 1998.

16

Peter W. Walcott has been our Senior Vice President, Secretary and General Counsel since the effectiveness of
the merger with Mykrolis. He served as the Vice President, Secretary and General Counsel of Mykrolis since
October 2000. Mr. Walcott served as the Assistant General Counsel of Millipore from 1981 until March 2001.

Joseph J. Murphy joined us as our Senior Vice President Human Resources in October of 2005. He served as the
Senior Vice President Human Resources of HNTB, an engineering and architectural services firm from February
2004 until October 2005 and as Corporate Vice President, Human Resources of Cadence Design Systems, Inc.
from May of 2000 through October 2003 Prior to that Mr. Murphy held senior human resource positions with
L.M. Ericsson Telephone Company and with General Electric Company.

John Goodman has been our Senior Vice President Chief Technology & Innovation Officer since the
effectiveness of the merger with Mykrolis. He served as the Managing Director of the fuel cell market sector of
Entegris Minnesota since January 2005 and prior to that as president of the fuel cell market sector since June
2002. Mr. Goodman served as Executive Vice President and Chief Technology Officer of Entegris Minnesota
from 1999 to 2002. Prior to that time, Mr. Goodman held a variety of positions with Fluoroware (a predecessor to
Entegris Minnesota) since 1982.

AVAILABLE INFORMATION

Our Annual Report on Form 10-K, our quarterly reports on Form 10-Q and any current reports on Form 8-K that
we may file or furnish to the SEC pursuant to Sections 13(a) or 15(d) of the Securities Exchange Act of 1934 as
well as any amendments to any of those reports are available free of charge on or through our website as soon as
reasonably practicable after we file them with or furnish them to the SEC electronically. Our website is located at
http://www.Entegris.com; these reports can be found under “Investor Relations—SEC Filings”. In addition, the
SEC maintains a website containing these reports that can be located at http://www.sec.gov. These reports may
also be read and copied at the SEC’s Public Reference Room at 450 Fifth Street, N.W., Washington, D.C. 20549.
Information on the operation of the Public Reference Room may be obtained by calling the SEC at
1-800-SEC-0330.

At their first meeting following the Merger, on August 10, 2005, our Board of Directors adopted a code of
business ethics, The Entegris Code of Business Ethics, applicable to all of our executives, directors and
employees as well as a set of corporate governance guidelines. The Entegris Code of Business Ethics, the
Governance Guidelines and the charters for our Audit & Finance Committee, Governance & Nominating
Committee and of our Management Development & Compensation Committee all appear on our website at
http://www.Entegris.com under “Investor Relations—Governance”. The Governance Guidelines and committee
charters are also available in print to any shareholder that requests a copy. Copies may be obtained by contacting
Peter W. Walcott, our Senior Vice President & General Counsel through our corporate headquarters.

Item 1A. Risk Factors.

Risks Relating to our Business and Industry

The semiconductor industry has historically been highly cyclical, and industry downturns reduce revenue
and profits.

Our business depends on the purchasing patterns of semiconductor manufacturers, which, in turn, depend on the
current and anticipated demand for semiconductors and products utilizing semiconductors. The semiconductor
industry has historically been highly cyclical with periodic downturns, which often have resulted in decreased
expenditures by semiconductor manufacturers. While over the past sixteen quarters this cyclicality has moderated
somewhat, there can be no assurance that the semiconductor industry will not return to the high cyclicality of the
past. Even this somewhat moderated cyclicality could cause our operating results to fluctuate significantly from
one period to the next.

17

Furthermore, even in periods of reduced demand, we must continue to maintain a satisfactory level of research
and development expenditures and continue to invest in our infrastructure. At the same time, we have to manage
our operations to be able to respond to significant increases in demand. In addition, because we typically do not
have significant backlog, changes in order patterns have a more immediate impact on our revenues. We expect
the semiconductor industry to continue to be cyclical. During downturns our revenue is reduced and there is
likely to be an increase in pricing pressure, affecting both gross margin and net income. Such fluctuations in our
results could cause our share price to decline substantially. We believe that period-to-period comparisons of our
results of operations may not be meaningful, and you should not rely upon them as indicators of our future
performance.

The semiconductor industry is subject to rapid demand shifts, which are difficult to predict. As a result,
our inability to meet demand in response to these rapid shifts may cause a reduction in our market share.

Our ability to increase sales of our products, particularly our capital equipment products, depends in part upon
our ability to ramp up the use of our manufacturing capacity for such products in a timely manner and to
mobilize our supply chain. In order to meet the demands of our customers, we may be required to ramp up our
manufacturing capacity in as little as a few months. If we are unable to expand our manufacturing capacity on a
timely basis or manage such expansion effectively, our customers could seek such products from other suppliers,
and our market share could be reduced. Because demand shifts in the semiconductor industry are rapid and
difficult to foresee, we may not be able to increase capacity quickly enough to respond to such an increase in
demand.

Our annual and quarterly operating results are subject to fluctuations as a result of rapid demand shifts
and our insignificant level of backlog, and if we fail to meet the expectations of securities analysts or
investors, the market price of our securities may decrease significantly.

Our sales and profitability can vary significantly from quarter to quarter and year to year. Because our expense
levels are relatively fixed in the short-term, an unanticipated decline in revenue in a particular quarter could
disproportionately affect our net income in that quarter. In addition, we make a substantial portion of our
shipments shortly after we receive the order, and therefore we operate with a relatively modest level of backlog.
As a consequence of the just-in-time nature of shipments and the modest level of backlog, our results of
operations may decline quickly and significantly in response to changes in order patterns or rapid decreases in
demand for our products. We anticipate that fluctuations in operating results will continue in the future. Such
fluctuations in our results could cause us to fail to meet the expectations of securities analysts or investors, which
could cause the market price of our securities to decline substantially. We believe that period-to-period
comparisons of our results of operations may not be meaningful, and you should not rely upon them as indicators
of our future performance.

We may not be able to accurately forecast demand for our products.

As noted above, we typically operate our business on a just-in-time shipment basis with a modest level of
backlog and we order supplies and plan production based on internal forecasts of demand. Due to these factors,
we have, in the past, and may again in the future, fail to accurately forecast demand for our products, in terms of
both volume and specific products for which there will be demand. This has led to, and may in the future lead to,
delays in product shipments, disappointment of customer expectations, or, alternatively, an increased risk of
excess inventory and of inventory obsolescence. If we fail to accurately forecast demand for our products, our
business, financial condition and operating results could be materially and adversely affected.

Semiconductor industry up-cycles may not reach historic levels but instead may reflect a lower rate of
long-term growth, similar to the electronics industry.

Notwithstanding the severe and prolonged downturn in the semiconductor industry and the related reduction in
manufacturing operations during the period 2001 to 2003, there may still be excess manufacturing capacity. In

18

addition, there is no new high-opportunity application to drive growth in the semiconductor industry, as was the
case in 1998 with telecommunications and internet applications. Accordingly, some analysts have predicted that
the semiconductor industry may experience lower growth rates during a recovery cycle than has historically been
the case and that its longer-term performance may reflect this lower growth rate, which would be similar to the
growth rate of the electronics industry.

If we are unable to maintain our technological expertise in design and manufacturing processes, we will
not be able to successfully compete.

The microelectronics industry is subject to rapid technological change, changing customer requirements and
frequent new product introductions. Because of this, the life cycle of our products is difficult to determine. We
believe that our future success will depend upon our ability to develop and provide products that meet the
changing needs of our customers, including the transition from the use of 200 millimeter wafers to 300
millimeter wafers, the shrinking of integrated circuit line-widths and the use of new classes of materials, such as
copper, titanium nitride and organic and inorganic dielectric materials, which are materials that have either a low
or high resistance to the flow of electricity. This requires that we successfully anticipate and respond to
technological changes in manufacturing processes in a cost-effective and timely manner. Any inability to develop
the technical specifications for any of our new products or enhancements to our existing products or to
manufacture and ship these products or enhancements in volume in a timely manner could harm our business
prospects and significantly reduce our sales. In addition, if new products have reliability or quality problems, we
may experience reduced orders, higher manufacturing costs, delays in acceptance and payment, additional
service and warranty expense and damage to our reputation.

Because our sales are concentrated on a small number of key customers, our revenue and profitability may
materially decline if one or more of our key customers do not continue to purchase our existing and new
products in significant quantities.

We depend and expect to continue to depend on a limited number of customers for a large portion of our
business, and changes in several customers’ orders could have a significant impact on our operating results. If
any one of our key customers decides to purchase significantly less from us or to terminate its relationship with
us, our revenue and profitability may decline significantly. We could also lose our key customers or significant
sales to our key customers because of factors beyond our control, such as a significant disruption in our
customers’ businesses generally or in a specific product line. These customers may stop incorporating our
products into their products with limited notice to us and suffer little or no penalty for doing so. In addition, if
any of our customers merge, we may experience lower overall sales from the merged companies. Because one of
our strategies has been to develop long-term relationships with a few key customers in the product areas in which
we focus and because we have a long product design and development cycle for most of our products and
prospective customers typically require lengthy product qualification periods prior to placing volume orders, we
may be unable to replace these customers quickly or at all.

Because we are subject to order and shipment uncertainties and many of our costs are fixed, any
significant changes, cancellations or deferrals of orders or shipments could cause our revenue and
profitability to decline or fluctuate.

As is typical in the microelectronics industry, we do not usually obtain long-term purchase orders or
commitments from our customers. Instead, we work closely with our customers to develop non-binding forecasts
of the future volume of orders. Customers may cancel their orders, change production quantities from forecasted
volumes or delay production for reasons beyond our control. Order cancellations or deferrals could cause us to
hold inventory for longer than anticipated, which could reduce our profitability, restrict our ability to fund our
operations and cause us to incur unanticipated reductions or delays in our revenue. Our customers often change
their orders multiple times between initial order and delivery. Such changes usually relate to quantities or
delivery dates, but sometimes relate to the specifications of the products we are supplying. If a customer does not

19

timely pay for these products, we could incur significant charges against our income. In addition, our profitability
may be affected by the generally fixed nature of our costs. Because a substantial portion of our costs is fixed, we
may experience deterioration in gross margins when volumes decline. From time to time, we make capital
investments in anticipation of future business opportunities. If we are unable to obtain the anticipated business,
our revenue and profitability may decline.

Competition from existing or new companies in the microelectronics industry could cause us to experience
downward pressure on prices, fewer customer orders, reduced margins, the inability to take advantage of
new business opportunities and the loss of market share.

We operate in a highly competitive industry. We compete against many domestic and foreign companies that
have substantially greater manufacturing, financial, research and development and marketing resources than we
do. In addition, some of our competitors may have more developed relationships with our existing customers
than we do, which may enable them to have their products specified for use more frequently by these customers.
We also face competition from the manufacturing operations of our current and potential customers, who
continually evaluate the benefits of internal manufacturing versus outsourcing. As more original equipment
manufacturers dispose of their manufacturing operations and increase the outsourcing of their products to liquid
and gas delivery system and other component companies, we may face increasing competitive pressures to grow
our business in order to maintain our market share. If we are unable to maintain our competitive position, we
could experience downward pressure on prices, fewer customer orders, reduced margins, the inability to take
advantage of new business opportunities and a loss of market share.

Competition in the semiconductor and data storage materials integrity management fields could intensify,
which may limit our ability to maintain and increase our market share and raise prices.

We face substantial competition from a number of companies, some of which have greater financial, marketing,
manufacturing and technical resources. Larger providers of materials integrity management solutions and
products could emerge, with potentially broader product lines. Larger competitors could spend more time and
resources on research and development, which could give those competitors an advantage in meeting customer
demand. We expect that existing and new competitors will improve the design of their existing products and will
introduce new products with enhanced performance characteristics. The introduction of new products or more
efficient production of existing products by our competitors could diminish our market share and increase pricing
pressure on our products. Further, customers continue to demand lower prices, shorter delivery times and
enhanced product capability. If we do not respond adequately to such pressures, we could lose customers or
orders. If we are unable to compete successfully, we could experience pricing pressures, reduced gross margins
and order cancellations.

Lack of market acceptance of our 300 mm shipper products as well as our other products could harm our
operating results.

The growing trend toward the use of 300 mm wafers has contributed to the increasing complexity of the
semiconductor manufacturing process. The greater diameter of these wafers requires higher tooling costs and
presents more complex handling, storage and transportation challenges. We have made substantial investments to
complete a full line of 300 mm wafer shipping products, but there is no guarantee that our customers will adopt
our 300 mm wafer shipping product lines as they convert existing 200 mm wafer fabrication facilities to the
fabrication of 300 mm wafers or build new 300 mm wafer fabrication facilities, and sales of our shipping
products for these applications would be minimal and we might not recover our development costs.

Semiconductor and other electronic device manufacturers may direct semiconductor capital equipment
manufacturers to use a specified supplier’s product in their equipment. Accordingly, our success depends in part
on our ability to have semiconductor and other electronic device manufacturers specify that our products be used
at their fabrication facilities. Some of our competitors may have more developed relationships with

20

semiconductor and other electronic device manufacturers, which enable them to have their products specified for
use in manufacturers’ fabrication facilities.

We may acquire other businesses, form joint ventures or divest businesses that could negatively affect our
profitability, increase our debt and dilute your ownership of our company.

As part of our business strategy, we have, and we expect to continue to address gaps in our product offerings,
diversify into complementary product markets or pursue additional technology and customers through
acquisitions, joint ventures or other types of collaborations. We also expect to adjust our portfolio of businesses
to meet our ongoing strategic objectives. As a result, we may enter markets in which we have no or limited prior
experience and may encounter difficulties in divesting businesses that no longer meet our objectives.
Competition for acquiring attractive businesses in our industry is substantial. In executing this part of our
business strategy, we may experience difficulty in identifying suitable acquisition candidates or in completing
selected transactions at appropriate valuations. Alternatively, we may be required to undertake multiple
transactions at the same time in order to take advantage of acquisition opportunities that do arise; this could strain
our ability to effectively execute and integrate these transactions. We consider a variety of financing alternatives
for each acquisition which could include borrowing additional funds, reduction of our cash balances or issue of
additional shares of our common stock to complete an acquisition. This could impair our liquidity and dilute your
ownership of our company. Further, we may not be able to successfully integrate any acquisitions that we do
make into our existing business operations and we could assume unknown or contingent liabilities or experience
negative effects on our reported results of operations from dilutive results from operations and/or from future
potential impairment of acquired assets including goodwill related to future acquisitions. We may experience
difficulties in operating in foreign countries or over significant geographical distances and in retaining key
employees or customers of an acquired business, and our management’s attention could be diverted from other
business issues. We may not identify or complete these transactions in a timely manner, on a cost-effective basis
or at all, and we may not realize the benefits of any acquisition or joint venture.

Our credit agreement contains restrictions that limit our flexibility in operating our business.

Our credit facility contains various covenants that limit our ability to engage in specified types of transactions
including, among other things our ability to:

•

•

incur additional indebtedness;

pay dividends on, repurchase or make distributions in respect of our capital stock or make other
restricted payments;

• make certain investments;

•

•

•

•

sell certain assets;

create liens;

consolidate, merge, sell or otherwise dispose of all or substantially all of our assets; and

enter into certain transactions with our affiliates.

Significant increases in borrowings under our revolving credit agreement would leave us with a higher
degree of leverage.

A higher degree of leverage could have important consequences for our business and your investment, including:

•

•

increasing our vulnerability to adverse economic, industry or competitive developments;

requiring a substantial portion of our cash flow from operations to be dedicated to the payment of
principal and interest on our indebtedness, therefore reducing our ability to use our cash flow to fund
our operations, capital expenditures and future business opportunities;

21

•

exposing us to the risk of increased interest rates on certain of our borrowings;

• making it more difficult for us to satisfy our obligations with respect to our indebtedness;

•

•

•

restricting us from making strategic acquisitions or causing us to make non-strategic divestitures;

limiting our ability to obtain additional financing for working capital, capital expenditures, product
development, debt service requirements, acquisitions and general corporate or other purposes; and

limiting our flexibility in planning for, or reacting to, changes in our business or market conditions and
placing us at a competitive disadvantage compared to our competitors who are less highly leveraged
and who therefore, may be able to take advantage of opportunities that our leverage prevents us from
exploiting.

The failure to generate sufficient profitability may cause some or all of the Company’s deferred tax assets
to expire.

As of December 31, 2007, the Company had approximately $49.1 million in net deferred tax assets (DTAs).
These DTAs include approximately $28.4 million in foreign tax credit carryovers that can be used to offset
taxable income in future periods and reduce our income taxes payable in those future periods. The foreign tax
credit carryovers will expire in ten years. At this time, the Company considers it more likely than not that it will
have sufficient U.S. and foreign taxable income in the future that will allow the Company to realize these DTAs.
However, it is possible that some or all of these DTAs could ultimately expire unused, especially if the
Company’s tax profile changes as a result of acquired tax losses or tax credit carryforwards. Therefore, unless the
Company is able to generate sufficient U.S. and foreign taxable income from its operations, a substantial
valuation allowance to reduce the Company’s DTAs may be required, which may materially increase income tax
expense in the period it is taken and materially adversely affect its results of operations and financial condition.

Manufacturing Risks

Our dependence on single and limited source suppliers could affect our ability to manufacture our
products.

We rely on single or limited source suppliers for some plastic polymers that are critical to the manufacturing of
our products. At times, we have experienced a limited supply of certain polymers as well as the need to substitute
polymers, resulting in delays, increased costs and the risks associated with qualifying new polymers with our
customers. An industry-wide increase in demand for these polymers could affect the ability of our suppliers to
provide sufficient quantities to us. If we are unable to obtain an adequate quantity of such supplies, our
manufacturing operations may be interrupted.

In addition, suppliers may discontinue production of polymers specified in certain of our products, requiring us in
some instances to certify an alternative with our customers. If we are unable to obtain an adequate quantity of
such supplies for any of the above reasons, our manufacturing operations may be affected. Obtaining alternative
sources would likely result in increased costs and shipping delays, which could decrease profitability and damage
our relationships with current and potential customers.

Prices for polymers can vary widely. In the current high oil price environment, some suppliers have added and
may continue to add surcharges to the prices of the polymers we purchase. While we have long-term
arrangements with certain key suppliers of polymers that fix our price for purchases up to specified quantities, if
our polymer requirements exceed the quantities specified, we could be exposed to higher material costs. If the
cost of polymers increases and we are unable to correspondingly increase the sales price of our products, our
profit margins will decline.

22

Our production processes are becoming increasingly complex, and our production could be disrupted if we
are unable to avoid manufacturing difficulties.

Our manufacturing processes are complex and require the use of expensive and technologically sophisticated
equipment and materials. These processes are frequently modified to improve manufacturing yields and product
quality. We have on occasion experienced manufacturing difficulties, such as temporary shortages of raw
materials and occasional critical equipment breakdowns that have delayed deliveries to customers. A number of
our product lines are manufactured at only one or two facilities, and any disruption could impact our sales until
another facility could commence or expand production of such products.

Our manufacturing operations are subject to numerous risks, including the introduction of impurities in the
manufacturing process and other manufacturing difficulties that may not be well understood for an extended
period of time and that could lower manufacturing yields and make our products unmarketable; the costs and
demands of managing and coordinating geographically diverse manufacturing facilities; and the disruption of
production in one or more facilities as a result of a slowdown or shutdown in another facility. We could
experience these or other manufacturing difficulties, which might result in a loss of customers and exposure to
product liability claims.

We may lose sales if we are unable to timely procure, repair or replace capital equipment necessary to
manufacture many of our products.

If our existing equipment fails, or we are unable to obtain new equipment quickly enough to satisfy any increased
demand for our products, we may lose sales to competitors. In particular, we do not maintain duplicate tools for
most of our important products. Fixing or replacing complex tools is time consuming, and we may not be able to
replace a damaged tool in time to meet customer requirements. In addition, from time to time we may upgrade or
add new manufacturing equipment that may require substantial lead times to build and qualify. Delays in
building and qualifying new equipment could result in a disruption of our manufacturing processes and prevent
us from meeting our customers’ requirements so that they would seek other suppliers.

We incur significant cash outlays over long-term periods in order to research, develop, manufacture and
market new products, that may never reach market or may have limited market acceptance.

We make significant cash expenditures to research, develop and market new products. For example, we incurred
$39.7 million, $38.1 million and $36.1 million of engineering, research and development expense in 2007, 2006
and 2005, respectively. The development period for a product can be as long as five years. Following
development, it may take an additional two to three years for the sales of that product to reach a substantial level.
We cannot be certain of the success of a new product. A product concept may never progress beyond the
development stage or may only achieve limited acceptance in the marketplace. If this occurs, we do not receive a
direct return on our expenditures and may not even realize any indirect benefits. Additionally, capacity expansion
may be necessary in order to manufacture a new product. If sales levels do not increase to offset the additional
fixed operating expenses associated with any such expansion, our revenue and profitability could decline and our
prospects could be harmed.

We are subject to a variety of environmental laws that could cause us to incur significant expenses.

In addition to other regulatory requirements affecting our business, we are subject to a variety of federal, state,
local and foreign regulatory requirements relating to the use, disposal, clean-up of, and human exposure to,
hazardous chemicals. We generate and handle materials that are considered hazardous waste under applicable
law. Certain of our manufacturing operations require the discharge of substantial quantities of wastewater into
publicly owned waste treatment works which require us to assure that our wastewater complies with volume and
content limitations. If we fail to comply with any present or future regulations, we could be subject to future
liabilities or the suspension of production. In addition, compliance with these or future laws could restrict our
ability to expand our facilities or build new facilities or require us to acquire costly equipment, incur other
significant expenses or modify our manufacturing processes.

23

We are continually evaluating our manufacturing operations within our plants in order to achieve
efficiencies and gross margin improvements. If we are unable to successfully manage transfers or
realignments of our manufacturing operations, our ability to deliver product to our customers could be
disrupted and our business, financial condition and results of operations could be adversely affected.

In order to enhance the efficiency and cost effectiveness of our manufacturing operations we expect to move
several product lines from one of our plants to another and to consolidate manufacturing operations in our plants.
Our product lines involve technically complex manufacturing processes that require considerable expertise to
operate. If we are unable to effect these transfers, realignments and consolidations in a systematic manner within
established schedules or if we are unable to successfully operate relocated manufacturing processes in the
destination plant, production may be disrupted and we may not be able to deliver these products to meet
customer orders in a timely manner, which could harm our business.

Loss of our key personnel could hurt our business because of their experience in the microelectronics
industry and their technological expertise. Similarly, our inability to attract and retain new qualified
personnel could inhibit our ability to operate and grow our business successfully.

We depend on the services of our key senior executives and other technological experts because of their
experience in the microelectronics industry and their technical expertise. The loss of the services of one or
several of our key employees or an inability to attract, train and retain qualified and skilled employees,
specifically research and development and engineering personnel, could result in the loss of customers or
otherwise inhibit our ability to operate and grow our business successfully. In the past, during the extended
downturn in the semiconductor industry our predecessor companies have had to impose salary reductions on
senior employees and freeze or eliminate merit increases in an effort to maintain its financial position. Similarly,
changes in accounting rules requiring fair value accounting for stock options will make it more expensive to
provide our employees with equity incentives, which may require us to reduce the level of equity compensation.
These actions may have an adverse effect on employee loyalty and may make it more difficult for us to attract
and retain key personnel.

If we are unable to protect our intellectual property rights, our business and prospects could be harmed.

Our future success and competitive position depend in part upon our ability to obtain and maintain proprietary
technology used in our principal product families. We rely, in part, on patent, trade secret and trademark law to
protect that technology. We routinely enter into confidentiality agreements with our employees. However, there
can be no assurance that these agreements will not be breached, that we will have adequate remedies for any
breach or that our confidential and proprietary information and technology will not be independently developed
by or become otherwise known to third parties. We have obtained a number of patents relating to our products
and have filed applications for additional patents. We cannot assure you that any of our pending patent
applications will be approved, that we will develop additional proprietary technology that is patentable, that any
patents owned by or issued to us will provide us with competitive advantages or that these patents will not be
challenged by third parties. Patent filings by third parties, whether made before or after the date of our filings,
could render our intellectual property less valuable. Competitors may misappropriate our intellectual property,
and disputes as to ownership of intellectual property may arise. In addition, if we do not obtain sufficient
international protection for our intellectual property, our competitiveness in international markets could be
significantly impaired, which would limit our growth and future revenue. Furthermore, there can be no assurance
that third parties will not design around our patents.

Protection of our intellectual property rights has and may continue to result in costly litigation.

We may from time to time be required to institute litigation in order to enforce our patents, copyrights or other
intellectual property rights, to protect our trade secrets, to determine the validity and scope of the proprietary
rights of others or to defend against claims of infringement. Such litigation could result in substantial costs and

24

diversion of resources and could negatively affect our sales, profitability and prospects regardless of whether we
are able to successfully enforce our rights. For example, as described in Item 3. “Legal Proceedings” below we
are engaged in multiple patent litigations with Pall Corporation. We intend to prosecute and defend these cases
vigorously and expect that these lawsuits will continue for extended periods of time and that we will incur
substantial costs in pursuing them. In addition it may become necessary for us to initiate other costly patent
litigation against this or other competitors in order to protect and/or perfect our intellectual property rights.

If we infringe on the proprietary technology of others, our business and prospects could be harmed.

Our commercial success will depend, in part, on our ability to avoid infringing or misappropriating any patents or
other proprietary rights owned by third parties. If we are found to infringe or misappropriate a third party’s patent
or other proprietary rights, we could be required to pay damages to such third party, alter our products or
processes, obtain a license from the third party or cease activities utilizing such proprietary rights, including
making or selling products utilizing such proprietary rights. If we are required to obtain a license from a third
party, there can be no assurance that we will be able to do so on commercially favorable terms, if at all.

International Risks

We conduct a significant amount of our sales activity and manufacturing efforts outside the United States,
which subjects us to additional business risks and may cause our profitability to decline due to increased
costs.

Sales to customers outside the United States accounted for approximately 74% of our net sales in calendar 2007,
71% of our net sales in calendar 2006, and 71% of net sales for the calendar year ending December 31, 2005. We
anticipate that international sales will continue to account for a majority of our net sales. In addition, a number of
our key domestic customers derive a significant portion of their revenues from sales in international markets. We
also manufacture a significant portion of our products outside the United States and are dependent on
international suppliers for many of our parts. We intend to continue to pursue opportunities in both sales and
manufacturing internationally. Our international operations are subject to a number of risks and potential costs
that could adversely affect our revenue and profitability, including:

•

•

•

•

•

•

unexpected changes in regulatory requirements that could impose additional costs on our operations or
limit our ability to operate our business;

greater difficulty in collecting our accounts receivable and longer payment cycles than is typical in
domestic operations;

changes in labor conditions and difficulties in staffing and managing foreign operations;

expense and complexity of complying with U.S. and foreign import and export regulations;

liability for foreign taxes assessed at rates higher than those applicable to our domestic operations; and

political and economic instability.

In the past, we have incurred costs or experienced disruptions due to the factors described above and expect to do
so in the future. For example, our operations in Asia, and particularly Korea, Taiwan and Japan, have been
negatively impacted in the past as a result of regional economic instability. In addition, Taiwan and Korea
account for a growing portion of the world’s semiconductor manufacturing. There are currently strained relations
between China and Taiwan and there are continuing tensions between North Korea and South Korea and the
United States. Any adverse developments in those relations could significantly disrupt the worldwide production
of semiconductors, which may lead to reduced sales of our products. Furthermore, we incur additional legal
compliance costs associated with our international operations and could become subject to legal penalties in
foreign countries if we do not comply with local laws and regulations, which may be substantially different from

25

those in the United States. In many foreign countries it is common to engage in business practices that are
prohibited by United States law applicable to us such as the Foreign Corrupt Practices Act. Although we
implement policies and procedures designed to ensure compliance with these laws, there can be no assurance that
all of our employees, contractors and agents, as well as those companies to which we outsource certain of our
business operations, including those based in or from countries where practices which violate such United States
laws may be customary, will not take actions in violation of our policies. Any such violation, even if prohibited
by our policies, could have an adverse effect on our business.

Fluctuations in the value of the U.S. dollar in relation to other currencies may lead to lower net income or
may cause us to raise prices, which could result in reduced net sales.

Foreign currency exchange rate fluctuations could have an adverse effect on our net sales and results of
operations. Unfavorable foreign currency fluctuations against the U.S. dollar could require us to increase prices
to foreign customers, which could result in lower net sales by us to such customers. Alternatively, if we do not
adjust the prices for our products in response to unfavorable foreign currency fluctuations, our profitability could
decline. In addition, sales made by our foreign subsidiaries will be denominated in the currency of the country in
which these products are sold, and the currency we receive in payment for such sales could be less valuable at the
time of receipt versus the time of sale as a result of foreign currency exchange rate fluctuations.

As we seek to source more of the materials from which our products are made from foreign countries we
may be subject to increased import duties.

In an effort to reduce the cost of our products or to obtain the highest quality materials available, we expect that
our purchases of raw materials and components from foreign countries will increase. Those of our products
manufactured in the United States or other countries from these materials and components may consequently be
burdened by import duties imposed by the U.S. or those other countries and these additional costs may be
substantial and may put our products at a competitive disadvantage.

An increased concentration of wafer manufacturing in Japan could result in lower sales of our wafer
shipper products.

A large percentage of the world’s 300 mm wafer manufacturing currently takes place in Japan. Our market share
in Japan is currently lower than in other regions we serve. If we are not able to successfully operate our
manufacturing capability and increase market share in Japan, we might not be able to maintain our global market
share in wafer shipper products, especially if 300 mm wafer manufacturing in Japan increases.

Terrorist attacks, such as the attacks that occurred in New York and Washington, D.C. on September 11,
2001, and other acts of violence or war may affect the markets in which we operate and hurt our
profitability.

Terrorist attacks may negatively affect our operations and your investment. There can be no assurance that there
will not be future terrorist attacks against the United States or United States businesses. These attacks or armed
conflicts may directly impact our physical facilities or those of our suppliers or customers. Our primary facilities
include headquarters, research and development and manufacturing facilities in the United States, sales, research
and development and manufacturing facilities in Japan and Malaysia, and sales and service facilities in Europe
and Asia. Also attacks may disrupt the global insurance and reinsurance industries with the result that we may
not be able to obtain insurance at historical terms and levels for our facilities. Furthermore, such attacks may
make travel and the transportation of our supplies and products more difficult and more expensive and may
ultimately affect the sales of our products in the United States and overseas. As a result of terrorism the United
States may enter into additional armed conflicts, which could have a further impact on our domestic and
international sales, our supply chain, our production capacity and our ability to deliver products to our customers.
The consequences of these armed conflicts and the associated instability are unpredictable and we may not be
able to foresee events that could have an adverse effect on our business and your investment.

26

Risks Related to the Securities Markets and Ownership of our Securities

Because of the past volatility of our stock price and the stock price of predecessor companies, the price of
our common stock in the future may likewise be volatile so that the ability to trade our common shares
may be adversely affected and our ability to raise capital through future equity financing may be reduced.

The stock prices of both of our predecessor companies have been volatile in the past and the price of our
common stock may be volatile in the future. For example: in fiscal year 2007, the closing price of our stock on
the NASDAQ National Market ranged from a low of $7.87 to a high of $12.18.

The trading price of our common shares is subject to wide fluctuations in response to various factors, some of
which are beyond our control, including factors discussed elsewhere in this report and including the following:
the failure to meet the published expectations of securities analysts; changes in financial estimates by securities
analysts; press releases or announcements by, or changes in market values of, comparable companies; volatility
in the markets for high-technology stocks, general stock market price and volume fluctuations, which are
particularly common among securities of high-technology companies; stock market price and volume
fluctuations attributable to inconsistent trading volume levels; additions or departures of key personnel; and
involvement in or adverse results from litigation. These market fluctuations may cause the trading price of our
common stock to decrease.

Recently enacted changes in the securities laws and regulations are likely to increase our costs.

The Sarbanes-Oxley Act of 2002 has required changes in some of our corporate governance, securities disclosure
and compliance practices. In response to the requirements of that Act, the Securities and Exchange Commission
and the NASDAQ have promulgated new rules and listing standards covering a variety of subjects. Compliance
with these new rules and listing standards has increased our legal and financial and accounting costs, and we
expect these increased costs to continue indefinitely. We also expect these developments to make it more
difficult and more expensive for us to obtain director and officer liability insurance, and we may be forced to
accept reduced coverage or incur substantially higher costs to obtain coverage. Likewise, these developments
may make it more difficult for us to attract and retain qualified members of our Board of Directors, particularly
independent directors, or qualified executive officers.

If we fail to maintain an effective system of internal controls, we may not be able to accurately report our
financial results. As a result, current and potential stockholders could lose confidence in our financial
reporting, which would harm our business and the trading price of our stock.

Effective internal controls are necessary for us to provide reliable financial reports. If we cannot provide reliable
financial reports, our business and operating results could be harmed. We have in the past discovered, and may in
the future discover, areas of our internal controls that need improvement. For example, during each of the fiscal
2007, 2006 and 2005 year-end audits, a material weakness in internal control over financial reporting was
identified. Each of these material weaknesses represented a reasonable possibility that a material misstatement of
the Company’s annual or interim financial statements would not have been prevented or detected. The impact of
neither of these material weaknesses required the restatement of any of our financial statements.

Any failure to implement and maintain the improvements in the controls over our financial reporting, or
difficulties encountered in the implementation of these improvements in our controls, could cause us to fail to
meet our reporting obligations. Any failure to improve our internal controls to address the identified material
weakness could also cause investors to lose confidence in our reported financial information, which could have a
negative impact on the trading price of our stock.

27

Changes to financial accounting standards relating to the grant of stock options may affect our reported
results of operations and could result in additional cost to provide equity incentives to our key employees.

With the commencement of effectiveness of the requirement that employee stock option and employee stock
purchase plan shares should be treated as a compensation expense using the fair value method, equity incentive
techniques that previously had no impact on our reported results of operations now require that we incur
significant compensation charges and our results of operations could be adversely affected.

Provisions in our charter documents, Delaware law and our shareholder rights plan may delay or prevent
an acquisition of us, which could decrease the value of your shares.

Our certificate of incorporation and By-Laws, Delaware law and our shareholder rights plan contain provisions
that could make it harder for a third party to acquire us without the consent of our Board of Directors. These
provisions include limitations on actions by our stockholders by written consent. In addition, our Board of
Directors has the right to issue preferred stock without stockholder approval, which could be used to dilute the
stock ownership of a potential hostile acquirer. Our shareholder rights plan will permit our stockholders to
purchase shares of our common stock at a 50% discount upon the occurrence of specified events, including the
acquisition by anyone of 15% or more of our common stock, unless such event is approved by our Board of
Directors. Delaware law also imposes restrictions on mergers and other business combinations between us and
any holder of 15% or more of our outstanding common stock. Although we believe these provisions provide for
an opportunity to receive a higher bid by requiring potential acquirers to negotiate with our Board of Directors,
these provisions apply even if the offer may be considered beneficial by stockholders. If a change of control or
change in management is delayed or prevented, the market price of our common stock could suffer.

Your percentage ownership in us may be diluted by future issuances of capital stock, which could reduce
your influence over matters on which stockholders vote.

Subject to applicable NASDAQ standards, our Board of Directors has the authority, without action or vote of our
stockholders, to issue all or any part of our authorized but unissued shares. Issuances of common stock or the
exercise of employee and director stock options would dilute your percentage ownership interest, which will
have the effect of reducing your influence over matters on which our stockholders vote. In addition, we may
issue substantial quantities of our common stock in order to effect acquisitions which will also dilute your
ownership interest. If the issuances are made at prices that reflect a discount from the then current trading price
of our common stock, your interest in the book value of our common stock might be diluted.

Item 1B. Unresolved Staff Comments.

Not Applicable.

28

Item 2.

Properties.

Our principal executive offices are located in Chaska, Minnesota. We also have manufacturing, design and
equipment cleaning facilities in the United States, Japan, France and Malaysia. Information about our principal
facilities is set forth below:

Location

Principal Function

Approximate

Square Feet Leased/Owned

Chaska, Minnesota . . . . . . . . . . . . . Executive Offices, Research & Manufacturing
Billerica, Massachusetts . . . . . . . . . Executive Offices, Research & Manufacturing
Colorado Springs, Colorado . . . . . . Manufacturing
Gilroy, California . . . . . . . . . . . . . . Manufacturing; Cleaning Services
Montpelier, France . . . . . . . . . . . . . Cleaning Services
Yonezawa, Japan . . . . . . . . . . . . . . Manufacturing
Kulim, Malaysia . . . . . . . . . . . . . . . Manufacturing

370,000
175,000
82,000
60,000
53,000
196,000
195,000

Owned
Leased(1)
Owned
Owned(2)
Owned
Owned
Owned

(1) This lease expires March 31, 2014, but is subject to two five year renewal options.
(2) This facility is in the process of being closed and the associated assets are reported as Assets of discontinued

operations and other assets held for sale as of December 31, 2007.

We lease approximately 4,200 square feet of manufacturing space in Millipore’s facility located in Bedford, MA
pursuant to an Amended and Restated Membrane Manufacturing and Supply Agreement that expires
December 31, 2010. We also lease approximately 21,000 square feet of research and development and
manufacturing space in two buildings located in San Diego, California, which was assumed pursuant to the
Mykrolis acquisition of Aeronex, Inc. in 2004. Approximately 31,000 square feet of office, research and
development and manufacturing space located in Franklin, MA was assumed pursuant to the Mykrolis
acquisition of Extraction Systems, Inc. in 2005. The leases for this space continued for a term of approximately
two years following those acquisitions and are subject to renewal options.

We also lease an aggregate of approximately 11,000 square feet of office, R&D and manufacturing space in two
buildings located in Burlington, Massachusetts which we acquired in connection with our acquisition of a
specialty coatings business. These leases are for a term expiring December 31, 2009.

We maintain a worldwide network of sales, service, repair and cleaning centers in the United States, Germany,
France, Japan, Taiwan, Singapore, China and Korea. Leases for our facilities expire between October 2008 and
March 2014. We currently expect to be able to extend the terms of expiring leases or to find suitable replacement
facilities on reasonable terms.

We believe that our facilities are well-maintained and suitable for their respective operations. Except for
approximately 15,000 square feet in our newly expanded Kulim, Malaysia facility, all of our facilities are utilized
within a normal range of production volume.

Item 3.

Legal Proceedings.

The following discussion provides information regarding certain litigation to which the Company was a party
that were pending as of December 31, 2007.

As previously disclosed, on March 3, 2003 the Company’s predecessor, Mykrolis Corporation, filed a lawsuit
against Pall Corporation in the United States District Court for the District of Massachusetts alleging
infringement of two of the Company’s U.S. patents by certain fluid separation systems and related assemblies
used in photolithography applications manufactured and sold by the defendant. The Company’s lawsuit also
sought a preliminary injunction preventing the defendant from the manufacture, use, sale, offer for sale or
importation into the U.S. of any infringing product. On April 30, 2004, the Court issued a preliminary injunction

29

against Pall Corporation and ordered Pall to immediately stop making, using, selling, or offering to sell within
the U.S., or importing into the U.S., its PhotoKleen EZD-2 Filter Assembly products or “any colorable imitation”
of those products. On January 18, 2005, the Court issued an order holding Pall Corporation in contempt of court
for the violation of the preliminary injunction and ordering Pall to disgorge all profits earned from the sale of its
PhotoKleen EZD-2 Filter Assembly products and colorable imitations thereof from the date the preliminary
injunction was issued through January 12, 2005. In addition, Pall was also ordered to reimburse Mykrolis for
certain of its attorney’s fees associated with the contempt and related proceedings. The Court’s order also
dissolved the preliminary injunction, effective January 12, 2005, based on certain prior art cited by Pall which it
alleged raised questions as to the validity of the patents in suit. On February 17, 2005, the Company filed notice
of appeal to the U.S. Circuit Court of Appeals for the Federal Circuit appealing the portion of the Court’s order
that dissolved the preliminary injunction and Pall filed a notice of appeal to that court with respect to the finding
of contempt and the award of attorneys’ fees. On June 13, 2007 the Court of Appeals issued an opinion
dismissing Pall’s appeal for lack of jurisdiction and affirming the District Court’s order dissolving the
preliminary injunction.

On April 6, 2006 the Company filed a lawsuit against Pall Corporation in the United States District Court for the
District of Massachusetts alleging infringement of the Company’s newly issued U.S. patent No. 7,021,667 by
certain filter assembly products used in photolithography applications that are manufactured and sold by the
defendant. The Company’s lawsuit also seeks a preliminary injunction preventing the defendant from the
manufacture, use, sale, offer for sale or importation into the U.S. of the infringing products. On October 23, 2006
the Company’s motion for preliminary injunction was argued before the court; a decision on this motion is
pending.

On August 23, 2006 the Company filed a lawsuit against Pall Corporation in the United States District Court for
the District of Massachusetts alleging infringement of the Company’s newly issued U.S. patent No. 7,037,424 by
certain fluid separation modules and related separation apparatus, including the product known as the EZD-3
Filter Assembly, used in photolithography applications that are manufactured and sold by the defendant. It is
believed that the EZD-3 Filter Assembly was introduced into the market by the defendant in response to the
action brought by the Company in March of 2003 as described above. This case is currently in the preliminary
stages.

As previously disclosed, on December 16, 2005 Pall Corporation filed suit against the Company in U.S. District
Court for the Eastern District of New York alleging patent infringement. Specifically, the suit alleges
infringement of two of plaintiff’s patents by one of the Company’s gas filtration products and by the packaging
for certain of the Company’s liquid filtration products. Both products and their predecessor products have been
on the market for a number of years. The Company intends to vigorously defend this suit and believes that it will
ultimately prevail. This case is currently in the discovery stage.

On May, 4, 2007 Pall Corporation filed a lawsuit against the Company in the U.S. District Court for the Eastern
District of New York alleging patent infringement. Specifically, the suit alleges that certain of the Company's
point-of-use filtration products infringe a newly issued Pall patent, as well as three older Pall patents. Pall's
action, which relates only to the U.S., asserts that "on information and belief'' the Company's Impact 2 and
Impact Plus point-of-use photoresist filters infringe a patent issued to Pall on March 27, 2007, as well as three
older patents. The Company intends to vigorously defend this suit and believes that it will ultimately prevail.
This case is currently in the preliminary stage.

Item 4.

Submission of Matters to a Vote of Security Holders.

None.

30

PART II

Item 5. Market for Entegris’ Common Stock, Related Stockholder Matters and Issuer Purchases of

Equity Securities.

Entegris’ Common Stock, $0.01 par value, trades on the NASDAQ National Market System (NMS) under the
symbol “ENTG”. The following table sets forth the highest and lowest sale prices of the Company shares during
fiscal 2007 and 2006. As of February 1, 2008 there were 1,145 shareholders of record.

First quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Second quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Third quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fourth quarter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$11.98
$12.18
$12.17
$ 9.49

$10.21
$10.11
$ 8.61
$ 7.87

$11.19
$12.00
$11.17
$11.99

High

Low

High

Low

$9.20
$9.26
$8.37
$8.65

Fiscal 2007

Fiscal 2006

The Company has never declared or paid any cash dividends on its capital stock. The Company currently intends
to retain all available earnings for use in its business or for share repurchase programs and does not anticipate
paying any cash dividends in the foreseeable future. On July 27, 2005 the Entegris Board of Directors declared a
dividend of one common stock purchase right for each share of Entegris Common Stock outstanding to
shareholders of record on August 8, 2005, payable on August 8, 2005. For a description of the Common Stock
Rights Plan see “Other Information” in Item 1 above. Each right generally entitles the holder to purchase one
one-hundredth of a share of a series of preferred stock of Entegris at a price of $50.

31

Comparative Stock Performance

The following graph compares the cumulative total shareholder return on the common stock of Entegris
Minnesota and the Company from August 30, 2002 through December 31, 2007 with cumulative total return of
(1) The NASDAQ Composite Index, and (2) The Philadelphia Semiconductor Index.

The following graph assumes $100 was invested at the close of trading August 30, 2002 in Entegris, Inc.
common stock, the NASDAQ Composite Index and the Philadelphia Semiconductor Index and that all dividends
are reinvested.

Comparison of 5 Year Cumulative Total Return
Assumes Initial Investment of $100
August 30, 2002 – December 2007

250.00

200.00

150.00

100.00

50.00

0.00

8/2002

2002

2003

2004

2005

2006

2007

ENTEGRIS INC

NASDAQ Composite - Total Returns

Philadelphia Semiconductor Index

August 30,
2002

December 31,
2002

December 31,
2003

December 31,
2004

December 31,
2005

December 31,
2006

December 31,
2007

. . . . . . . .

100

114.07

142.30

110.18

104.30

119.80

95.55

Entegris, Inc.
NASDAQ

Composite . . . . . . . .

100

101.75

153.43

167.49

171.03

188.80

214.99

Philadelphia

Semiconductor
Index . . . . . . . . . . . .

100

96.42

169.72

145.16

161.36

158.56

139.54

32

Purchases of Equity Securities by the Company

The following table provides information concerning shares of the Company’s Common Stock $0.01 par value
purchased during the fourth quarter of fiscal 2007.

Period

(a)
Total Number of
Shares Purchased(1)

(b)
Average Price Paid
per Share

(c)
Total Number of
Shares Purchased
as Part of Publicly
Announced Plans
or Programs

October 1–31, 2007 . . . . . . . . . . . . . .
November 1–30, 2007 . . . . . . . . . . . .
December 1–31, 2007 . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . .
Total

—
—
456,104
456,104

—
$8.96
$8.96

—
456,104
456,104

(d)
Maximum Number
(or Approximate
Dollar Value) of
Shares that May
Yet Be Purchased
Under the Plans or
Programs

$49,400,000
$49,400,000
$45,300,000
$45,300,000

(1) The Company announced on August 31, 2006, a plan to repurchase up to $150,000,000 of its outstanding

common stock over a twelve to eighteen-month period: approximately $100,600,000 of this stock
repurchase program was effected pursuant to Accelerated Stock Buyback Agreements with Goldman
Sachs & Co commenced in 2006 and completed during the third quarter of 2007 and approximately
$49,400,000 is to be effected pursuant to a Rule 10b5-1 trading plan established by the Company on
November 15, 2007.

Item 6. Selected Financial Data.

The table that follows presents selected financial data for each of the last five fiscal years and four months ended
December 31, 2005 from the Company’s consolidated financial statements and should be read in conjunction
with the Company’s Consolidated Financial Statements and the related Notes and with “Management’s
Discussion and Analysis of Financial Condition and Results of Operations” included elsewhere in this Form
10-K Report.

On December 13, 2005, the Company’s Board of Directors approved a change in fiscal year end from a 52-week
or 53-week fiscal year period ending on the last Saturday of August to December 31, effective as of
December 31, 2005.

(In thousands, except per share
amounts)

Operating Results
Net sales . . . . . . . . . . . . . . . . . . .
Gross profit
. . . . . . . . . . . . . . . .
Selling, general and

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

Year ended
August 28,
2004

Year ended
August 30,
2003

$ 626,238
266,237

$ 672,882
305,078

$ 199,644
70,207

$ 347,345
138,183

$329,006
149,857

$238,702
97,034

administrative expenses . . . . .

182,792

188,311

77,253

110,341

91,662

77,096

Engineering, research and

development expenses . . . . . .
Operating profit (loss) . . . . . . . .
Income (loss) before income
taxes and equity in affiliate
earnings . . . . . . . . . . . . . . . . .
Income tax expense (benefit) . . .
Income (loss) from continuing

operations . . . . . . . . . . . . . . . .
Net income (loss) . . . . . . . . . . . .

39,727
43,718

38,074
78,693

13,904
(20,950)

18,188
9,654

18,066
40,129

16,760
1,580

56,619
10,356

89,556
26,936

(18,572)
(8,713)

14,307
1,154

41,478
13,223

(2,107)
(5,227)

46,356
44,359

$

63,151
63,466

(9,789)
$ (18,324) $

12,906
9,393

28,242
$ 24,770

2,976
1,275

$

$

33

(In thousands, except per share
amounts)

Earnings Per Share Data
Diluted earnings (loss) per share
—continuing operations . . . . .

Weighted average shares

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

Year ended
August 28,
2004

Year ended
August 30,
2003

$

0.37

$

0.46

$

(0.07) $

0.16

$

0.37

$

0.04

outstanding—diluted . . . . . . .

124,940

138,492

135,437

79,328

76,220

74,475

Operating Ratios—% of net

sales
Gross profit
Selling, general and

. . . . . . . . . . . . . . . .

administrative expenses . . . . .

Engineering, research and

development expenses . . . . . .
Operating profit (loss) . . . . . . . .
Income (loss) before income
taxes and equity in affiliate
earnings . . . . . . . . . . . . . . . . .
. . . . . . . . . . .
Effective tax rate(1)
Net income (loss) . . . . . . . . . . . .

Cash Flow Statement Data
Depreciation and

amortization . . . . . . . . . . . . . .
Capital expenditures . . . . . . . . .
Net cash provided by operating

42.5%

45.3%

35.2%

39.8%

45.5%

40.7%

29.2

6.3
7.0

9.0
18.3
7.1

28.0

5.7
11.7

13.3
30.1
9.4

38.7

31.8

7.0
(10.5)

(9.3)
46.9
(9.2)

5.2
2.8

4.1
8.1
2.7

27.9

5.5
12.2

12.6
31.9
7.5

32.3

7.0
0.7

(0.9)
248.1
0.5

$

43,776
26,919

$

42,905
30,860

$

13,754
10,311

$

23,599
19,472

$ 23,813
19,633

$ 25,876
13,876

activities . . . . . . . . . . . . . . . . .

132,017

96,076

22,598

52,323

52,896

32,131

Net cash provided by (used in)

investing activities . . . . . . . . .

50,800

(17,370)

(13,116)

58,807

(86,880)

(38,059)

Net cash (used in) provided by

financing activities . . . . . . . . .

(183,061)

(80,037)

(15,432)

3,066

1,835

10,706

Balance Sheet and Other Data
Current assets . . . . . . . . . . . . . . .
Current liabilities . . . . . . . . . . . .
Working capital . . . . . . . . . . . . .
Current ratio . . . . . . . . . . . . . . . .
Long-term debt
. . . . . . . . . . . . .
Shareholders’ equity . . . . . . . . .
Total assets . . . . . . . . . . . . . . . . .
Return on average shareholders’
equity—% . . . . . . . . . . . . . . .

Shares outstanding at end of

$ 382,621
125,749
256,872
3.04
20,373
852,309
1,035,241

$ 556,321
92,699
463,622
6.00
2,995
1,015,980
1,157,618

$ 516,364
111,017
405,347
4.65
3,383
1,012,819
1,142,790

$ 546,502
124,856
421,646
4.38
21,800
1,023,414
1,185,620

$276,482
63,895
212,587
4.33
18,898
372,185
467,046

$221,592
54,289
167,303
4.08
10,070
337,665
414,739

4.7

6.3

(1.8)

1.3

7.0

0.4

period . . . . . . . . . . . . . . . . . . .

115,356

132,771

136,044

135,299

73,380

72,512

(1) Effective tax rate represents income tax expense (benefit) as a percent of income (loss) before income taxes

and equity in affiliates.

34

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

You should read the following discussion and analysis of the Company’s consolidated financial condition and
results of operations with the consolidated financial statements and the accompanying notes to the consolidated
financial statements included elsewhere in this document. This discussion contains forward-looking statements
that involve numerous risks and uncertainties, including, but not limited to, those described in the “FACTORS
AND UNCERTAINTIES THAT MAY AFFECT FUTURE RESULTS” section of this Item 7. The Company’s
actual results may differ materially from those contained in any forward-looking statements.

Overview

This overview is not a complete discussion of the Company’s financial condition, changes in financial condition
and results of operations; it is intended merely to facilitate an understanding of the most salient aspects of its
financial condition and operating performance and to provide a context for the discussion that follows. The
detailed discussion and analysis that follows must be read in its entirety in order to fully understand the
Company’s financial condition and results of operations.

Entegris, Inc. is a leading provider of products and services that purify, protect and transport the critical materials
used in key technology-driven industries. Entegris derives most of its revenue from the sale of products and
services to the semiconductor and data storage industries. The Company’s customers consist primarily of
semiconductor manufacturers, semiconductor equipment and materials suppliers, and hard disk manufacturers,
which are served through direct sales efforts, as well as sales and distribution relationships, in the United States,
Asia, Europe and the Middle East.

The Company offers a diverse product portfolio which includes more than 16,000 standard and customized
products that we believe provide the most comprehensive offering of materials integrity management products
and services to the microelectronics industry. Certain of these products are unit-driven and consumable products
that rely on the level of semiconductor manufacturing activity to drive growth, while others rely on expansion of
manufacturing capacity to drive growth. The Company’s unit-driven and consumable product class includes
wafer shippers, disk shipping containers and test assembly and packaging products, membrane-based liquid
filters and housings, metal-based gas filters and resin-based gas purifiers, as well as PVA roller brushes for use in
post-CMP cleaning applications. The Company’s capital expense driven products include its process carriers that
protect the integrity of in-process wafers, components, systems and subsystems that use electro-mechanical,
pressure differential and related technologies to permit semiconductor and other electronics manufacturers to
monitor and control the flow and condition of process liquids used in these manufacturing processes.

On December 13, 2005, the Company’s Board of Directors approved a change in fiscal year end from a 52-week
or 53-week fiscal year period ending on the last Saturday of August to December 31, effective as of
December 31, 2005. As a result, the financial periods presented and discussed in this Annual Report on Form
10-K will be defined as follows: (i) years ended December 31, 2007 and 2006 representing the twelve months
ended December 31, 2007 and 2006; (ii) four-month transition period ended December 31, 2005 representing the
four months ended December 31, 2005; and (iii) year ended August 27, 2005 representing the twelve months
ended August 27, 2005.

Key operating factors Key factors, which management believes have the largest impact on the overall results of
operations of Entegris, Inc., include:

• Level of sales Since a large portion of the Company’s product costs (excepting raw materials,

purchased components and direct labor) are largely fixed in the short/medium term, an increase or
decrease in sales affects gross profits and overall profitability significantly. Also, increases or
decreases in sales and operating profitability affect certain costs such as incentive compensation and
commissions, which are highly variable in nature. The Company’s sales are subject to effects of
industry cyclicality, technological change and substantial competition, including pricing pressures.

35

• Variable margin on sales The Company’s variable margin on sales is determined by selling prices and
the costs of manufacturing and raw materials. This is also affected by a number of factors, which
include the Company’s sales mix, purchase prices of raw material (especially resin and purchased
components), competition, both domestic and international, direct labor costs, and the efficiency of the
Company’s production operations, among others.

• Fixed cost structure Increases or decreases in sales have a large impact on profitability. There are a
number of large fixed or semi-fixed cost components, which include salaries, indirect labor and
benefits, lease expense, and depreciation and amortization. It is not possible to vary these costs easily
in the short term as volumes fluctuate. Thus changes in sales volumes can affect the usage and
productivity of these cost components and can have a large effect on the Company’s results of
operations.

Overall Summary of Financial Results for the Year Ended December 31, 2007

For the year ended December 31, 2007 (2007), net sales were $626.2 million, down $46.6 million, or 6.9%, from
net sales of $672.9 million reported for the year ended December 31, 2006 (2006) due to lower demand for the
Company’s products, in part reflecting the demand drivers of the semiconductor industry. The sales comparison
is positively affected by approximately $8.9 million due to the year-over-year strengthening of certain
international currencies versus the U.S. dollar over the period, most notably the Euro. Net sales for 2007 were
positively affected by the inclusion of approximately $6.2 million in sales attributable to a third quarter
acquisition.

Mainly reflecting the year-over-year sales decrease and the corresponding lower factory utilization, the Company
reported lower gross profits and a reduced gross margin. The Company’s gross margin in 2007 was 42.5% versus
45.3% a year earlier.

The Company’s selling, general and administrative (SG&A) expenses decreased $5.5 million in 2007. The year-
over-year reduction reflected lower costs incurred by the Company in connection with the integration activities
associated with the merger with Mykrolis as well as the benefit of lower salaries and other costs resulting from
the realignment of activities after the merger.

The Company reported income from continuing operations of $46.4 million for 2007 compared to $63.2 million
in 2006. Included in income from continuing operations in 2007 was the second quarter pre-tax gain of $6.1
million on the sale of the Company’s interest in a privately-held equity investment and the fourth quarter U.S. tax
benefit of $9.4 million associated with the repatriation and recharacterization of $100 million of the Company’s
Japanese subsidiary’s accumulated undistributed earnings.

During 2007, the Company generated cash of $132.0 million from continuing operations as a result of the cash
generated by the Company’s net earnings, non-cash charges and the net positive impact of changes in operating
assets and liabilities, most notably decreases in accounts receivable and inventory. Despite the cash generated by
operations, cash and cash equivalents and short-term investments declined to $160.7 million at December 31,
2007 compared to $275.0 million at December 31, 2006. The decrease mainly reflects the use of $256.1 million
to purchase the Company’s common shares in connection with its second quarter “Dutch auction” tender offer
and fourth quarter Rule 10b-5-1 trading plan, $44.9 million to acquire a specialty coatings business in the third
quarter and $26.9 million to acquire property and equipment.

Critical Accounting Policies Management’s discussion and analysis of financial condition and results of
operations are based upon the Company’s consolidated financial statements, which have been prepared in
accordance with accounting principles generally accepted in the United States. The preparation of these
consolidated financial statements requires the Company to make estimates, assumptions and judgments that
affect the reported amounts of assets, liabilities, revenues and expenses and related disclosure of contingent

36

assets and liabilities. At each balance sheet date, management evaluates its estimates, including, but not limited
to, those related to accounts receivable, warranty and sales return obligations, inventories, long-lived assets,
income taxes, business combinations and shared-based compensation. The Company bases its estimates on
historical experience and on various other assumptions that are believed to be reasonable under the
circumstances. Actual results may differ from these estimates under different assumptions or conditions. The
critical accounting policies affected most significantly by estimates, assumptions and judgments used in the
preparation of the Company’s consolidated financial statements are discussed below.

Net Sales The Company’s net sales consist of revenue from sales of products net of trade discounts and
allowances. The Company recognizes revenue upon shipment, primarily FOB shipping point, when evidence of
an arrangement exists, contractual obligations have been satisfied, title and risk of loss have been transferred to
the customer and collection of the resulting receivable is probable based upon historical collection results and
regular credit evaluations. In most transactions, the Company has no obligations to its customers after the date
products are shipped other than pursuant to warranty obligations. In the event that significant post-shipment
obligations or uncertainties exist such as customer acceptance, revenue recognition is deferred as appropriate
until such obligations are fulfilled or the uncertainties are resolved.

Accounts Receivable-Related Valuation Accounts The Company maintains allowances for doubtful accounts
and for sales returns and allowances. Significant management judgments and estimates must be made and used in
connection with establishing these valuation accounts. Material differences could result in the amount and timing
of the Company’s results of operations for any period if management made different judgments or utilized
different estimates. In addition, actual results could be different from the Company’s current estimates, possibly
resulting in increased future charges to earnings.

The Company provides an allowance for doubtful accounts for all individual receivables judged to be unlikely
for collection. For all other accounts receivable, the Company records an allowance for doubtful accounts based
on a combination of factors. Specifically, management considers the age of receivable balances and historical
bad debts write-off experience when determining its allowance for doubtful accounts. The Company’s allowance
for doubtful accounts was $0.5 million and $0.8 million at December 31, 2007 and December 31, 2006,
respectively.

An allowance for sales returns and allowances is established based on historical trends and current trends in
product returns. At December 31, 2007 and December 31, 2006, the Company’s reserve for sales returns and
allowances was $2.0 million and $1.8 million, respectively.

Inventory Valuation The Company uses certain estimates and judgments to properly value inventory. In
general, the Company's inventories are recorded at the lower of manufacturing cost or market value. Each
quarter, the Company evaluates its ending inventories for obsolescence and excess quantities. This evaluation
includes analyses of inventory levels, historical write-off trends, expected product lives, and sales levels by
product. Inventories that are considered obsolete are written off or a full valuation allowance is recorded. In
addition, valuation allowances are established for inventory quantities in excess of forecasted demand. Inventory
valuation allowances were $8.9 million and $10.1 million at December 31, 2007 and December 31, 2006,
respectively.

The Company’s inventories include materials and products subject to technological obsolescence, which are sold
in highly competitive industries. If future demand or market conditions are less favorable than current conditions,
additional inventory write-downs or valuation allowances may be required and would be reflected in cost of sales
in the period the revision is made.

Impairment of Long-Lived Assets The Company routinely considers whether indicators of impairment of its
property and equipment assets, particularly its molding equipment, are present. If such indicators are present, it is
determined whether the sum of the estimated undiscounted cash flows attributable to the assets in question is less

37

than their carrying value. If less, an impairment loss is recognized based on the excess of the carrying amount of
the assets over their respective fair values. Fair value is determined by discounting estimated future cash flows,
appraisals or other methods deemed appropriate. If the assets determined to be impaired are to be held and used,
the Company recognizes an impairment charge to the extent the present value of anticipated net cash flows
attributable to the assets is less than the assets’ carrying value. The fair value of the assets then becomes the
assets’ new carrying value, which is depreciated over the remaining estimated useful life of the assets.

The Company assesses the impairment of goodwill at least annually, or whenever events or changes in
circumstances indicate that the carrying value may not be recoverable. Factors considered important, which
would trigger an impairment review and potentially an impairment charge, include the following:

•
•

•
•

significant underperformance relative to historical or projected future operating results;
significant changes in the manner of use of the acquired assets or the Company’s overall business
strategy;
significant negative industry or economic trends; and
significant decline in the Company’s stock price for a sustained period, changing the Company’s
market capitalization relative to its net book value.

Income Taxes In the preparation of the Company’s consolidated financial statements, management is required to
estimate income taxes in each of the jurisdictions in which the Company operates. This process involves
estimating actual current tax exposures together with assessing temporary differences resulting from differing
treatment of items for tax and accounting purposes. These differences result in deferred tax assets and liabilities,
which are included in the Company’s consolidated balance sheet.

The Company has significant amounts of deferred tax assets. Management reviews its deferred tax assets for
recoverability on a quarterly basis and assesses the need for valuation allowances. These deferred tax assets are
evaluated by considering historical levels of income, estimates of future taxable income streams and the impact
of tax planning strategies. A valuation allowance is recorded to reduce deferred tax assets when it is determined
that it is more likely than not that the Company would not be able to realize all or part of its deferred tax assets.
The Company carried no valuation allowance as of December 31, 2007 compared to a $0.7 million valuation
allowance against its deferred tax assets at December 31, 2006 related to a portion of a capital loss carryforward
which at that time was deemed more likely than not to be unrealized. The elimination of the valuation allowance
during the quarter ended June 30, 2007 reflected the utilization of the capital loss carryforward to offset a portion
of the capital gain on the sale of an equity investment.

Warranty Claims Accrual The Company records a liability for estimated warranty claims. The amount of the
accrual is based on historical claims data by product group and other factors. Estimated claims could be
materially different from actual results for a variety of reasons, including a change in product failure rates and
service delivery costs incurred in correcting a product failure, manufacturing changes that could impact product
quality, or as yet unrecognized defects in products sold. At December 31, 2007 and December 31, 2006, the
Company’s accrual for estimated future warranty costs was $1.3 million and $1.8 million, respectively.

Business Acquisitions The Company accounts for acquired businesses using the purchase method of accounting,
which requires that the assets acquired and liabilities assumed be recorded at the date of acquisition at their
respective fair values. The judgments made in determining the estimated fair value assigned to each class of
assets acquired and liabilities assumed, as well as asset lives, can materially impact net income. Accordingly, for
significant items, the Company typically obtains assistance from independent valuation specialists.

There are several methods that can be used to determine the fair value of assets acquired and liabilities assumed.
For intangible assets, the Company normally utilizes the “income method.” This method starts with a forecast of
all of the expected future net cash flows. These cash flows are then adjusted to present value by applying an
appropriate discount rate that reflects the risk factors associated with the cash flow streams. Some of the more

38

significant estimates and assumptions inherent in the income method or other methods include the projected
amount and timing of future cash flows and the discount rate reflecting the risks inherent in the future cash flows.

Determining the useful life of an intangible asset also requires judgment. For example, different types of
intangible assets will have different useful lives and certain assets may even be considered to have indefinite
useful lives. All of these judgments and estimates can significantly impact net income.

Share-Based Compensation Statement of Financial Accounting Standards No. 123 (revised 2004), Share-Based
Payment, (SFAS 123(R)) requires the measurement and recognition of compensation expense for all share-based
payment awards made to employees and directors based on estimated fair values. Under SFAS 123(R), the
Company must estimate the value of employee stock option and restricted stock awards on the date of grant.

Prior to the adoption of SFAS 123(R), the value of employee stock options was estimated on the date of grant in
connection with the determination of the pro forma share-based compensation disclosures required by SFAS 123
using the Black-Scholes model. The fair value of share-based payment awards using an option-pricing model is
affected by the Company’s stock price as well as assumptions regarding a number of highly complex and
subjective variables. These variables include, but are not limited to, the expected stock price volatility over the
term of the awards, risk-free interest rate and dividend yield assumptions, and actual and projected employee
stock option exercise behaviors and forfeitures. No employee stock options have been awarded by the Company
since its adoption of SFAS 123(R).

Restricted stock and restricted stock unit awards are valued based on the Company’s stock price on the date of
grant.

Because share-based compensation expense recognized in the Consolidated Statement of Operations is based on
awards ultimately expected to vest, it has been recorded net of estimated forfeitures. SFAS 123(R) requires
forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures
differ from those estimates. Forfeitures were estimated based on historical experience. If factors change and the
Company employs different assumptions in the application of SFAS 123(R) in future periods, the share-based
compensation expense recorded under SFAS 123(R) may differ significantly from what was recorded in the
current period.

Certain restricted stock and restricted stock unit awards involve stock to be issued upon the achievement of
performance conditions (Performance Shares) under the Company’s stock incentive plans. Such performance
shares become available subject to time-based vesting conditions if, and to the extent that, financial performance
criteria for the applicable fiscal year or multi-year period are achieved. Accordingly, the number of performance
shares earned will vary based on the level of achievement of financial performance objectives for the applicable
period. Until such time that the Company’s performance can ultimately be determined, each quarter the
Company estimates the number of performance shares more likely than not to be earned based on an evaluation
of the probability of achieving the performance objectives. Such estimates are revised, if necessary, in
subsequent periods when the underlying factors change the Company’s evaluation of the probability of achieving
the performance objectives. Accordingly, share-based compensation expense associated with performance shares
recorded under SFAS 123(R) may differ significantly from what was recorded in the current period.

39

Results of Operations

Twelve months ended December 31, 2007 compared to twelve months ended December 31, 2006

The following table sets forth the results of operations and the relationship between various components of
operations, stated as a percent of net sales, for the years ended December 31, 2007 and December 31, 2006. The
Company’s historical financial data was derived from its consolidated financial statements and related notes
included elsewhere in this annual report.

( in thousands)

Year ended December 31, 2007 Year ended December 31, 2006

% of net sales

% of net sales

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gross profit
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selling, general and administrative expenses . . . . . . . .
Engineering, research and development expenses . . . .

Operating profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest income, net . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other income, net

Income before income taxes and equity in earnings of

affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income tax expense . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equity in net earnings of affiliates . . . . . . . . . . . . . . . .

$626,238
360,001

266,237
182,792
39,727

43,718
(5,245)
(7,656)

56,619
10,356
(93)

Net income from continuing operations . . . . . . . . . . . .

$ 46,356

100.0%
57.5

42.5
29.2
6.3

7.0
(0.8)
(1.2)

9.0
1.7
(0.0)

7.4

$672,882
367,804

305,078
188,311
38,074

78,693
(9,205)
(1,658)

89,556
26,936
(531)

$ 63,151

100.0%
54.7

45.3
28.0
5.7

11.7
(1.4)
(0.2)

13.3
4.0
(0.1)

9.4

Net sales For the year ended December 31, 2007 (2007), net sales were $626.2 million, down $46.6 million, or
6.9%, from sales for the year ended December 31, 2006 (2006). Net sales for fiscal 2007 included favorable
foreign currency translation effects of $8.9 million. This reflected the strengthening of certain international
currencies versus the U.S. dollar, most notably the Euro. On a geographic basis, total sales to North America
were 26%, Asia Pacific 36%, Europe 15% and Japan 23% in 2007. Sales from products of the high-purity
semiconductor coatings business acquired in the third quarter totaled $6.2 million in 2007.

Demand drivers for the Company’s business primarily consist of semiconductor fab utilization and production
(unit-driven) as well as capital spending for new or upgraded semiconductor fabrication facilities (capital-
driven). The Company analyzes sales of its products by these two key drivers. Both unit-driven and capital-
driven sales in 2007 decreased as compared with 2006. Sales of unit-driven products represented 60% of sales
and sales of capital-driven products represented 40% of total sales in 2007. This compares to a unit-driven to
capital-driven ratio of 59:41 for the year ended December 31, 2006, indicating a consistent pattern of demand
within the industry over the past twelve months.

Sales of unit-driven products fell 6% in 2007 as semiconductor fab utilization rates were relatively flat. Unit-
driven products have average lives of less than 18 months or need to be replaced based on usage levels. These
products include liquid filters used in the photolithography, CMP and wet etch and clean processes, and in wafer
shippers used to ship raw wafers, particularly at wafer sizes of 150mm and below, as well as in chip trays and
data storage components used to ship 65mm and 95mm disk drives. Sales of wafer shippers declined 11%, while
sales of disk shippers fell 17% primarily due to lower sales of 65mm shippers.

Year-over-year sales of capital-driven products decreased 11% in 2007. Capital-driven products include wafer
process carriers, gas microcontamination control systems used in the deployment of advanced photolithography
processes, fluid handling systems, including dispense pumps used in the photolithography process, and integrated
liquid flow controllers used in various processes around the fab. Sales of liquid systems also declined in the latter

40

half of 2007, reflecting the general slowing in the industry. Wafer transport products, such as 300mm FOUP
products, also fell, particularly at some North American customers. Sales of gas microcontamination control
products fell 5% after reaching peak levels in 2006.

Gross profit Gross profit for the year ended December 31, 2007 decreased by $38.8 million, to $266.2 million, a
decrease of 12.7% from $305.1 million for 2006. The gross margin rate for 2007 was 42.5% versus 45.3% for
2006.

The gross profit decline was primarily due to the lower utilization of the Company’s production facilities
compared to the prior period. Production volumes were considerably lower in 2007 as the Company sold
inventory on hand to satisfy customer demand, particularly in the first half of the year. Prices for raw materials
were relatively stable on a year-over-year basis.

Gross margin for 2007 also was affected by $2.2 million in transition costs such as travel, sampling and customer
qualification costs related to the transfer of four product lines from U.S. facilities to the Company’s facility in
Kulim, Malaysia. Costs of $2.9 million associated with the consolidation or closure of manufacturing facilities in
the U.S. and Singapore also reduced gross profit in 2007.

Gross margin in 2007 included a $0.8 million cost of sales charge associated with the fair market value write-up
of inventory acquired in the purchase of the assets of the high-purity semiconductor coatings business acquired in
the third quarter of 2007. The inventory write-up was recorded as part of the purchase price allocation and is
charged to cost of sales over inventory turns of the acquired inventory.

Gross profit in 2006 was reduced by costs of $2.8 million incurred in connection with the consolidation of
manufacturing facilities in the U.S., Germany and Japan. Offsetting these charges to 2006 gross profit was a gain
of $0.7 million on the sale of a facility recognized during the second quarter of 2006. Gross profit in the third and
fourth quarters of 2006 was lower than the strong levels achieved earlier in the year due to manufacturing
inefficiencies experienced at a North American plant in the third quarter and expenses incurred in the fourth
quarter in connection with a comprehensive worldwide review of the Company’s manufacturing operations to
identify and resolve manufacturing inefficiencies.

Selling, general and administrative expenses Selling, general and administrative (SG&A) expenses of $182.8
million for 2007 decreased $5.5 million, or 3%, compared to $188.3 million in 2006. SG&A expenses, as a
percent of net sales, increased to 29.2% from 28.0% a year earlier.

The year-over-year decrease in SG&A costs reflects the lower SG&A expenses incurred by the Company in
connection with the integration activities associated with the Mykrolis merger and other realignment activities, as
well as the benefit of the consolidation of various sales, marketing and other corporate functions during 2006.
Costs of $2.6 million were incurred by the Company in 2007 in connection with the integration and realignment
activities associated with the Mykrolis merger, compared to $12.1 million in 2006. The costs included in this
category generally relate to expenses incurred to integrate Mykrolis’ operations and systems into the Company’s
pre-existing operations and systems. These costs include, but are not limited to, the integration of information
systems, employee benefits and compensation, accounting/finance, tax, treasury, risk management, compliance,
administrative services, sales and marketing and other functions and include severance and retention costs. The
year-over-year decrease in SG&A expenses also includes a decline in incremental share-based compensation
expense of $3.0 million, offset by an increase in professional fees of $2.2 million.

Engineering, research and development expenses Engineering, research and development (ER&D) expenses
rose by $1.7 million, or 4.3%, to $39.7 million in 2007 compared to $38.1 million in 2006. ER&D expenses as a
percent of net sales were 6.3% compared to 5.7% a year ago. The increase reflected higher product sampling
costs as the Company continued to focus on the support of current product lines and the development of new
products and manufacturing technologies.

41

Interest income, net Net interest income was $5.2 million in 2007 compared to $9.2 million in 2006. The
decrease reflects lower average invested balances compared to a year ago primarily related to the Company’s use
of cash to finance the repurchase of its common shares during the second quarter of 2007.

Other income Other income in 2007 includes a pre-tax gain of $6.1 million on the sale of the Company’s
interest in a privately held equity investment accounted for using the cost method. Proceeds from the sale totaled
$6.6 million.

Income tax expense The Company recorded income tax expense of $10.4 million in 2007, compared to income
tax expense of $26.9 million in 2006. The effective tax rate was 18.3% in 2007 compared with a 30.1% rate a
year earlier.

The Company’s 2007 tax rate was lower than statutory rates for a number of reasons. In the fourth quarter of
2007, the Company’s Japanese subsidiary declared a dividend of 6.8 billion yen (approximately U.S. $60
million) and also loaned 4.6 billion yen (approximately U.S. $40 million) to the Company. The resulting
recharacterization of $100 million of the Japanese subsidiary’s accumulated undistributed earnings resulted in a
fourth quarter tax benefit of $9.4 million, net of state income tax expense.

The Company also benefited from a tax holiday in Malaysia whereby, as a result of employment commitments,
research and development expenditures and capital investments made by the Company, income from certain
manufacturing activities in Malaysia was exempt from tax with tax benefits in 2007 in the amount of $2.1
million. In 2006, the Company’s benefit from the tax holiday was $2.8 million. The 2007 effective tax rate was
also lower due to a corporate income tax refund of $0.8 million resulting from new legislation in Germany and a
$0.9 million favorable adjustment recorded to recognize the reconciliation of the Company’s 2006 federal tax
return and tax accounts. Partially offsetting these reductions was an increase to the Company’s tax contingency
reserves.

Discontinued operations

The Company’s businesses classified as discontinued operations recorded losses of $2.0 million, net of taxes, in
2007. These results included an operating loss of $1.4 million, a pre-tax impairment charge of $2.6 million
recorded in connection with the write-down of long-lived assets to fair value less cost to sell and a tax benefit of
$0.7 million related to a reduction in the Company’s deferred tax asset valuation allowance, resulting from the
utilization of a capital loss carryforward to offset a portion of the capital gain on the sale of an equity investment.

The Company’s discontinued operations recorded income of $0.3 million net of taxes for 2006. The after-tax
earnings of discontinued operations in 2006 included a tax benefit of $1.6 million associated with a decrease in
the Company’s deferred tax asset valuation allowance described above. The change in the valuation allowance
resulted from the settlement of negotiations regarding the terms of sale of a discontinued operation which
established the characterization of certain gains and losses.

Net income The Company recorded net income of $44.4 million, or $0.36 per diluted share, in 2007, compared
to net income of $63.5 million, or $0.46 per diluted share, in 2006. Income from continuing operations for 2007
was $46.4 million, or $0.37 per diluted share, compared to income from continuing operations of $63.2 million,
or $0.46 per diluted share, in the prior year.

Twelve months ended December 31, 2006 compared to twelve months ended December 31, 2005
(Unaudited)

The following table sets forth the results of operations and the relationship between various components of
operations, stated as a percent of net sales, for the years ended December 31, 2006 and December 31, 2005. The
Company’s historical financial data were derived from its consolidated financial statements and related notes

42

included elsewhere in this annual report. The unaudited information has been prepared on the same basis as the
audited consolidated financial statements appearing elsewhere in this annual report. All adjustments which
management considers necessary for the fair presentation of the unaudited information have been included in the
period presented.

(Dollars in thousands)

Year ended December 31, 2006

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$672,882
367,804

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selling, general and administrative expenses . . . . .
Engineering, research and development

305,078
188,311

expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

38,074

Operating profit (loss)
. . . . . . . . . . . . . . . . . . . . . .
Interest income, net . . . . . . . . . . . . . . . . . . . . . . . . .
Other income, net . . . . . . . . . . . . . . . . . . . . . . . . . .

Income (loss) before income taxes and equity in

earnings of affiliates . . . . . . . . . . . . . . . . . . . . . .
Income tax expense (benefit) . . . . . . . . . . . . . . . . .
Equity in net (earnings) loss of affiliates . . . . . . . .

78,693
(9,205)
(1,658)

89,556
26,936
(531)

Net income (loss) from continuing operations . . . .

$ 63,151

% of net sales

100.0%
54.7

45.3
28.0

5.7

11.7
(1.4)
(0.2)

13.3
4.0
(0.1)

9.4

Year ended December 31, 2005
(Unaudited)

% of net sales

$432,591
271,862

160,729
156,207

26,068

(21,546)
(4,519)
(2,138)

(14,889)
(10,558)
149

$ (4,480)

100.0%
62.8

37.2
36.1

6.0

(5.0)
(1.0)
(0.5)

(3.4)
(2.4)
—

(1.0)

Net sales For the year ended December 31, 2006 (2006), net sales were $672.9 million, up $240.3 million, or
55.5%, from sales reported for the year ended December 31, 2005 (2005). The increase in net sales reflects the
inclusion of sales from the former Mykrolis operations for the full year in 2006 versus only the five-month period
from August 6, 2005 through December 31, 2005 for the prior period. Such incremental sales totaled $192.0
million and accounted for approximately 80% of the year–over-year increase. Net sales for fiscal 2006 included
unfavorable foreign currency translation effects, principally related to the Japanese yen, versus the U.S. dollar in
the amount of $4.5 million. On a geographic basis, total sales to North America were 28%, Asia Pacific 33%,
Europe 16% and Japan 23% in 2006.

Demand drivers for the Company’s business primarily are comprised of semiconductor fab utilization and
production (unit-driven) as well as capital spending for new or upgraded semiconductor fabrication facilities
(capital-driven). The Company analyzes sales of its products by these two key drivers. Sales of unit-driven
products represented 59% of sales and sales of capital-driven products represented 41% of total sales in 2006.
This compares to a unit-driven to capital-driven ratio of 60:40 for the year ended December 31, 2005.

Sales of unit-driven products grew in 2006 as semiconductor fab utilization rates remained strong and stable.
Unit-driven products have average lives of less than 18 months or need to be replaced based on usage levels.
These products include liquid filters used in the photolithography, CMP and wet etch and clean processes and in
wafer shippers used to ship raw wafers, particularly at wafer sizes of 150mm and below, as well as in chip trays
and data storage components used to ship 65mm and 95mm disk drives. Demand for liquid filters remained
relatively stable for most of these semiconductor applications, but sales of these products to non-semiconductor
customers declined modestly. Sales of wafer shippers increased modestly due to higher sales of 200mm wafer
shipper products. Sales of disk shippers for data storage products were also higher, as the market for 95mm
devices remained strong.

Year-over-year sales of capital-driven products generally improved in 2006, with strong sales during the first half
of the year and a decline during the second half of 2006, reflecting a general slowing of the industry, particularly

43

in North America. Capital-driven products include wafer process carriers, gas microcontamination control
systems, used in the deployment of advanced photolithography processes, fluid handling systems, including
dispense pumps used in the photolithography process, and integrated liquid flow controllers used in various
processes around the fab. Sales of liquid systems grew during the first half of the year, but declined later in 2006,
reflecting a general slowing in the industry.

Wafer transport products, such as 300mm FOUP products, also reflected slower capital spending, particularly at
some North American customers. Sales of gas microcontamination control products reached the all-time high in
2006, reflecting the market acceptance of the Company’s gas purification systems and liquid lens system used on
advanced lithography steppers.

Sequentially, sales for the fourth quarter of 2006 were 1% lower than the third quarter of 2006 due to lower sales
of capital-driven products. Unit-driven sales remained stable, reflecting flat levels of wafer starts and
semiconductor production. This was in contrast to significantly lower sales of capital-driven products, due in part
to softening in demand, particularly from North American customers.

Gross profit Gross profit for the year ended December 31, 2006 increased by $144.3 million to $305.1 million,
an increase of 89.8% from $160.7 million for the comparable 2005 period. The gross margin percentage for 2006
was 45.3% versus 37.2% for the comparable 2005 period.

The gross profit and gross margin improvements for the year ended December 31, 2006 compared to the prior
year were mainly due to the addition of the former Mykrolis operations, particularly the inclusion of sales of gas
microcontamination and liquid microcontamination product lines as these products typically carry higher gross
margins than the Company’s other products. The Company also benefited from improved sales levels resulting in
improved utilization of its manufacturing facilities. Prices for raw materials were relatively stable sequentially
and compared to the year-ago period.

Gross profit in 2006 was reduced by costs of $2.8 million incurred in connection with the consolidation of
manufacturing facilities in the U.S., Germany and Japan. Offsetting these charges to 2006 gross profit was a gain
of $0.7 million on the sale of a facility recognized during the second quarter of 2006. Gross profit in the third and
fourth quarters of 2006 was lower than the strong levels achieved earlier in the year due to manufacturing
inefficiencies experienced at a North American plant in the third quarter and expenses incurred in the fourth
quarter in connection with a comprehensive worldwide review of the Company’s manufacturing operations to
identify and resolve manufacturing inefficiencies.

Gross profit in 2005 was significantly affected by the inclusion of $23.8 million in incremental charges
associated with the fair market value write-up of inventory acquired in the merger with Mykrolis. The inventory
write-up was recorded as part of the purchase price allocation and was charged to cost of sales over inventory
turns of the acquired inventory during the third and fourth quarters of 2005. Also during 2005, the Company
incurred costs of $8.4 million associated with the realignment of manufacturing facilities in the U.S., Germany
and Japan and its production and administrative activities, including $3.7 million in accelerated depreciation and
impairment charges associated with assets sold or in connection with realignment activities.

Selling, general and administrative expenses Selling, general and administrative (SG&A) expenses of $188.3
million for 2006 increased $32.1 million, or 20.6% compared to $156.2 million in the comparable period a year
ago. SG&A expenses as a percent of net sales fell to 28.0% from 36.1% a year earlier. The lower SG&A costs as
a percent of net sales reflect the benefit of cost reductions associated with the merging of the two entities.

The year-over-year increase in SG&A costs reflect the addition of SG&A expenses associated with Mykrolis’
infrastructure as well as increased amortization of intangibles of $7.4 million. Costs of $12.1 million were
incurred by the Company in connection with the integration and realignment activities associated with the
Mykrolis merger compared to $23.4 million in 2005. The costs included in the latter category generally relate to

44

expenses incurred to integrate Mykrolis’ operations and systems into the Company’s pre-existing operations and
systems. These costs include, but are not limited to, the integration of information systems, employee benefits
and compensation, accounting/finance, tax, treasury, risk management, compliance, administrative services, sales
and marketing and other functions and includes severance and retention costs. SG&A costs fell during the second
half of 2006 as cost containment measures were put in place in the face of slowing sales and as integration
activities were completed.

Engineering, research and development expenses Engineering, research and development (ER&D) expenses
rose by $12.0 million, or 46.1%, to $38.1 million in 2006 compared to $26.1 million for the year ended
December 31, 2005. The increases mainly reflect the inclusion of ER&D expenses associated with former
Mykrolis operations. ER&D expenses as a percent of net sales were 5.7% compared to 6.0% in the prior year.
The Company continued to focus on supporting current product lines and developing new products and
manufacturing technologies.

Interest income, net Net interest income was $9.2 million in 2006 compared to $4.5 million in the prior-year
period. The increase reflects the considerably higher rates of interest available on the Company’s investments in
short-term debt securities as well as the higher average net invested balance compared to the prior-year period,
associated in part with the cash and short-term investments acquired in the Mykrolis merger.

Income tax expense (benefit) The Company recorded income tax expense of $26.9 million in 2006 compared to
an income tax benefit of $10.6 million for the comparable period a year ago. The effective tax rate was 30.1% in
fiscal 2006 compared with a 70.9% rate a year earlier. The Company’s 2006 tax rate was lower than statutory
rates due to the benefits associated with export activities and a tax holiday in Malaysia whereby as a result of
employment commitments, research and development expenditures and capital investments made by the
Company, income from certain manufacturing activities in Malaysia was exempt from tax with tax benefits in
2006 in the amount of $2.8 million. In 2005, the Company’s had tax benefits from the Malaysian tax holiday in
the amount of $1.0 million.

Discontinued operations The Company’s businesses classified as discontinued operations recorded a loss before
income taxes of $1.9 million in 2006. The income from discontinued operations included a tax benefit of $1.6
million recorded in the first quarter of 2006 related to the change in the deferred tax asset valuation allowance
resulting from the resolution of a matter with respect to the characterization of certain gains and losses.

Net income The Company recorded net income of $63.5 million, or $0.46 per diluted share, in 2006, compared
to a net loss of $15.5 million, or $0.16 per diluted share, in the comparable 2005 period. Income from continuing
operations for fiscal 2006 was $63.2 million, or $0.46 per diluted share, compared to a net loss of $4.5 million, or
$0.03 per diluted share, in the prior-year period.

Four Months Ended December 31, 2005 Compared To Four Months Ended December 31, 2004
(Unaudited)

The following table sets forth the results of operations and the relationship between various components of
operations, stated as a percent of net sales, for the four-month periods ended December 31, 2005 and 2004. The
Company’s historical financial data were derived from its consolidated financial statements and related notes
included elsewhere in this annual report. The unaudited information has been prepared on the same basis as the
audited consolidated financial statements appearing elsewhere in this annual report. All adjustments which
management considers necessary for the fair presentation of the unaudited information have been included in the
period presented.

45

(Dollars in thousands)

Four months ended
December 31, 2005

% of net sales

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$199,644
129,437

Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selling, general and administrative expenses . . . . .
Engineering, research and development

70,207
77,253

expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

13,904

Operating (loss) profit
. . . . . . . . . . . . . . . . . . . . . .
Interest income, net . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
Other expense, net

(20,950)
(2,440)
62

(Loss) income before income taxes and equity in

(earnings) loss of affiliates . . . . . . . . . . . . . . . . .
Income tax (benefit) expense . . . . . . . . . . . . . . . . .
Equity in net (earnings) loss of affiliates . . . . . . . .

(18,572)
(8,713)
(70)

Net (loss) income from continuing operations . . . .

$ (9,789)

100.0%
64.8

35.2
38.7

7.0

(10.5)
(1.2)
—

(9.3)
(4.4)
—

(4.9)

Four months ended
December 31, 2004
(Unaudited)

$114,529
66,588

47,941
31,453

6,149

10,339
(473)
214

10,598
2,984
27

$

7,587

% of net sales

100.0%
58.1

41.9
27.5

5.4

9.0
(0.4)
0.2

9.3
2.6
—

6.6

Net sales Net sales were $199.6 million for the four months ended December 31, 2005, up 74% compared to
$114.5 million in the four months ended December 31, 2004. Sales from Mykrolis operations totaled $89.6
million, accounting for slightly more than the overall period-over-period increase. Sales were adversely affected
by approximately $3.5 million due to the weakening of international currencies versus the U.S. dollar, most
notably in Japan. On a geographic basis, total regional sales to North America were 31%, Asia Pacific 33%,
Europe 14% and Japan 22%.

Industry indicators during the 2005 period were largely positive. Semiconductor device makers and foundries
reported continued high fab utilization rates, both at the advanced technology nodes and for NAND flash and
other memory devices. Capital spending was also generally favorable.

These trends were reflected across unit-driven products. In particular, sales of liquid filtration and purification
products, which represent almost half of unit-driven sales, improved over the comparable period a year earlier.
Strength in Japan and North America was offset by relative weakness in Europe, whose order trends typically
trail those in other geographies.

Sales of wafer shippers rose during the period, driven by demand for product for 200mm and below. Sales of
other unit-driven products were mixed. Strong sales of gas microcontamination filters and purifiers, which are
used on a broad spectrum of gas and vacuum based tools, offset lower sales of shippers for data storage devices
and matrix trays for finished electronic products.

Among capital-driven products, sales of 300mm wafer carriers improved over the comparable period a year
earlier. Sales of these products are primarily driven by the timing of new fab construction, and as such, demand
can be variable from period to period. Sales of liquid systems products were also higher than the year-ago period.

Gross profit Gross profit in the four months ended December 31, 2005 increased by $22.3 million to $70.2
million, an increase of 46% from the $47.9 million reported in the four months ended December 31, 2004. The
gross margin percentage for the four months ended December 31, 2005, was 35.2 % versus 41.9% in the
comparable period of 2004.

The gross margin rate for the four months ended December 31, 2005 was significantly below the rate for the
same period in the prior year for a number of reasons. The main factor was the $17.8 million incremental cost of
sales charge associated with the fair market value write-up of inventory acquired in the merger with Mykrolis.
The inventory write-up was recorded as part of the purchase price allocation and was charged to cost of sales
over inventory turns of the acquired inventory and was fully expensed by the end of the quarter ended

46

November 26, 2005. Costs of $4.8 million associated with the consolidation of manufacturing facilities in the
U.S., Germany and Japan also reduced gross profit. Although price increases for resins began to moderate, on a
year-over-year basis, the Company’s gross margin was lower due to higher material costs for certain products.

Selling, general and administrative expenses Selling, general and administrative (SG&A) expenses increased
$45.8 million, or 146%, to $77.3 million in the four months ended December 31, 2005, up from $31.5 million in
the comparable four-month period a year earlier. Due to the magnitude of the increase, SG&A expenses, as a
percent of net sales, rose to 38.7% from 27.5% a year earlier.

The increase in SG&A costs reflected the addition of SG&A expenses of $31.0 million associated with Mykrolis’
infrastructure and increased amortization of intangibles of $4.7 million, as well as costs of $11.3 million incurred
by the Company in connection with the integration activities associated with the Mykrolis merger. The costs
included in this category generally relate to expenses incurred to integrate Mykrolis’ operations and systems into
the Company’s pre-existing operations and systems. These costs include, but are not limited to, the integration of
information systems, employee benefits and compensation, accounting/finance, tax, treasury, risk management,
compliance, administrative services, sales and marketing and other functions and includes severance and retention
costs. The year-over-year increase also included incremental share-based compensation expense of $9.6 million.

Engineering, research and development expenses Engineering, research and development (ER&D) expenses
were $13.9 million in the four months ended December 31, 2005, up 126% from $6.1 million in the four months
ended December 31, 2004. ER&D expenses, as a percent of net sales, increased to 7.0% from 5.4%, reflecting
the inclusion of Mykrolis ER&D expenses. The Company continued to focus on the support of current product
lines and the development of new products and manufacturing technologies.

Interest income, net Net interest income was $2.4 million in the four months ended December 31, 2005 compared
to $0.5 million in the same four-month period a year earlier. The increase reflected the higher rates of interest
available on the Company’s investments in short-term debt securities as well as the higher average net invested
balance compared to the prior-year period, associated in part with the short-term investments acquired in the
Mykrolis merger.

Income tax expense The Company recorded an income tax benefit of $8.7 million in the four months ended
December 31, 2005 compared to income tax expense of $3.0 million in the four months ended December 31,
2004. The effective tax rate was (46.9)% in the 2005 period, compared to 28.2% in the 2004 period.

During the four months ended December 31, 2005, the Company recorded a tax benefit of $1.1 million, plus
interest, related to the refund of certain Minnesota corporate income taxes previously paid for fiscal years 2000 and
2001 based upon certain rulings. In both periods, the Company’s effective tax rate benefited from a tax benefit
associated with export activities and a tax credit associated with research and development (R&D) activities. In
addition, the Company benefited from a tax holiday in Malaysia, whereby as a result of employment and R&D
expenditure commitments made by the Company, income from certain manufacturing activities in Malaysia was
exempt from tax, with tax benefits in the four months ended December 31, 2005 in the amount of $0.2 million.

Income tax expense in the four months ended December 31, 2004 included a $0.5 million tax benefit that was
recorded in connection with the resolution of a U.S. federal income tax refund claim made by the Company.

Discontinued operations The Company’s businesses classified as discontinued operations recorded a net loss of
$8.5 million, net of tax, in the four months ended December 31, 2005. The results included impairment charges
of $6.7 million, net of tax, associated with write-downs of long-lived assets to fair value less cost to sell. These
product lines were sold in late calendar 2005 and the first quarter of calendar 2006.

Net (loss) income The Company recorded a net loss of $18.3 million, or $0.14 per diluted share, in the four-
month period ended December 31, 2005 compared to net income of $6.6 million, or $0.09 per diluted share, in
the four-month period ended December 31, 2004. The loss from continuing operations for the 2005 four-month
period was $9.8 million, or $0.07 per share, compared to net income of $7.6 million, or $0.10 per share, in the
2004 four-month period.

47

Quarterly Results of Operations

The following table presents selected data from the Company’s consolidated statements of operations for the
eight quarters ended December 31, 2007. This unaudited information has been prepared on the same basis as the
audited consolidated financial statements appearing elsewhere in this annual report. All adjustments which
management considers necessary for the fair presentation of the unaudited information have been included in the
quarters presented.

QUARTERLY STATEMENTS OF OPERATIONS DATA (UNAUDITED)

Year ended December 31, 2006

Year ended December 31, 2007

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

(In thousands)
Net sales . . . . . . . . . . . . . . . .
Gross profit
. . . . . . . . . . . . .
Selling, general and
administrative
expenses . . . . . . . . . . . . . .

Engineering, research and

development expenses . . .
Operating profit . . . . . . . . . .
Net income . . . . . . . . . . . . . .

(Percent of net sales)
Net sales . . . . . . . . . . . . . . . .
Gross profit
. . . . . . . . . . . . .
Selling, general and
administrative
expenses . . . . . . . . . . . . . .

Engineering, research and

development expenses . . .
Operating profit . . . . . . . . . .
Net income . . . . . . . . . . . . . .

$156,406
72,827

$179,296
86,981

$169,880
75,838

$167,300
69,432

$159,571
68,508

$153,508
65,494

$151,811
65,510

$161,348
66,725

51,697

51,553

43,284

41,777

45,944

44,317

43,983

48,548

9,042
12,088
11,353

9,977
25,451
18,193

9,651
22,903
17,821

9,404
18,251
16,099

10,534
12,030
10,383

9,679
11,498
14,777

9,409
12,118
8,417

10,105
8,072
10,782

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

100.0%
46.6

100.0%
48.5

100.0%
44.6

100.0%
41.5

100.0%
42.9

100.0%
42.7

100.0%
43.2

100.0%
41.4

33.1

5.8
7.7
7.3

28.8

5.6
14.2
10.1

25.5

5.7
13.5
10.5

25.0

5.6
10.9
9.6

28.8

28.9

29.0

30.1

6.6
7.5
6.5

6.3
7.5
9.6

6.2
8.0
5.5

6.3
5.0
6.7

Our quarterly results of operations have been, and will likely continue to be, subject to significant fluctuations
due to a variety of factors, a number of which are beyond the Company’s control.

Liquidity and Capital Resources

The Company has historically financed its operations and capital requirements through cash flow from operating
activities, long-term loans, lease financing and borrowings under domestic and international short-term lines of
credit. In August 2005, the Company financed its merger with Mykrolis Corporation through the issuance of
common stock and stock options.

Operating activities Net cash flow provided by operating activities totaled $132.0 million for the year ended
December 31, 2007. Cash flow primarily related to net earnings, and the effect of non-cash charges, including
depreciation and amortization of $43.8 million, and share-based compensation expense of $10.3 million.

Also adding to operating cash flow was the net positive impact of changes in operating assets and liabilities, most
notably declines in receivables and inventory. Working capital stood at $256.9 million at December 31, 2007,
including $160.7 million in cash and cash equivalents, down from $463.6 million as of December 31, 2006,
including $275.0 million in cash, cash equivalents and short-term investments.

48

During 2007, accounts receivable, net of foreign currency translation adjustments, decreased by $20.1 million,
reflecting lower sales and an improvement in the Company’s days sales outstanding, which were 63 days at year
end compared to 70 days at the beginning of the year. Net of foreign currency translation adjustments,
inventories decreased in 2007 by $24.1 million from December 31, 2006 due to reduced production activity and
improved management of inventories.

Investing activities Cash flow provided by investing activities totaled $50.8 million in the twelve months ended
December 31, 2007. The company had proceeds from maturities and sales of short-term investments, net of
purchases, of $121.1 million during 2007. Proceeds of $2.0 million from the sale of various property and
equipment were recorded in the twelve months ended December 31, 2007. The Company owned no short-term
investments at December 31, 2007. Cash flow from investing activities also included proceeds from the sale of
the Company’s interest in a privately-held equity investment totaling $6.6 million.

The acquisition of a specialty coatings business in August 2007 totaled $44.9 million. Acquisition of property
and equipment totaled $26.9 million, primarily for additions related to the facility expansion in Malaysia,
manufacturing equipment, tooling and information systems. The Company expects total capital expenditures of
approximately $30 million for calendar 2008. The Company also invested $6.1 million in equities of privately-
held companies.

Financing activities Net cash used in financing activities totaled $183.1 million during 2007. As described
below, the Company repurchased and retired $256.1 million of common stock during the year. Proceeds from
borrowings received under various debt agreements during the year were $131.1 million. The Company made
payments of $88.1 million on borrowings. The Company received proceeds of $29.9 million in connection with
common shares issued under the Company’s stock option and stock purchase plans.

In June 2007, the Company’s Board of Directors authorized a share repurchase program to acquire up to $250
million of the Company’s stock. In a modified “Dutch Auction” tender offer completed in June 2007, the
Company purchased 21.1 million shares of its common stock at a price of $11.80 per share, plus costs to acquire
the shares, for a total cash outlay of approximately $251.4 million.

In August 2006, the Company entered into an accelerated share repurchase agreement (ASRA) and a collared
accelerated repurchase agreement (CASRA) with Goldman, Sachs & Co. The Company completed the
transaction in August 2007. The Company received an additional 0.4 million shares under the CASRA and paid
an additional $0.6 million under the ASRA, respectively.

In November 2007, the Company’s Board of Directors authorized a Rule 10b-5-1 trading plan to acquire up to
$49.2 million of the Company’s common stock. Under the trading plan, the Company purchased 0.5 million
shares of its common stock at a total cost of $4.1 million.

The Company executed a new credit agreement in 2007, which expires in June 2010, and allows for aggregate
borrowings of up to $85 million with interest at LIBOR rates plus an incremental factor ranging from 0.75% to
1.25% based on the current funded debt to EBITDA ratio (as defined therein). Under the credit agreement, which
includes a $60 million revolver and a $25 million one-year term note, the Company is prohibited from paying
cash dividends. The Company is also subject to, and is in compliance with, certain financial covenants including
a leverage ratio of funded debt to EBITDA (as defined therein) of not more than 3.00 to 1.00. In addition, the
Company must maintain consolidated aggregate amounts of cash and cash equivalents (which under the
agreement may also include auction rate securities classified as short-term investments) of not less than $50
million. In June 2007, the Company drew down the $25 million term note facility and subsequently paid the note
down completely in December 2007. Under the terms of the agreement, the $25 million term note facility is no
longer available. As of December 31, 2007, the remaining revolver facility of $60 million under the credit
agreement was available with no borrowings outstanding.

49

At December 31, 2007, the Company’s shareholders’ equity was $852.3 million, down 16% from $1,016.0
million at the beginning of the period. The decrease is primarily a result of the repurchase and retirement of the
Company’s stock as described above. This was offset partially by the Company’s net earnings of $44.4 million,
the proceeds of $29.9 million received in connection with shares issued under the Company’s stock option and
stock purchase plans, and the increase to additional paid-in capital of $10.6 million associated with the
Company’s share-based compensation expense and related tax benefits recorded during the period.

As of December 31, 2007, the Company’s sources of available funds comprised $160.7 million in cash and cash
equivalents, as well as funds available under various credit facilities. Entegris has a credit agreement with one
domestic commercial bank with available borrowing capacity of $60 million, with no borrowings outstanding, as
of December 31, 2007. The Company also has a line of credit with three international banks that provide for
borrowings of currencies for two of the Company’s overseas subsidiaries, equivalent to an aggregate of
approximately $21.0 million. There was $17.8 million in borrowings outstanding on these lines of credit at
December 31, 2007.

As described in greater detail at Note 21 to its consolidated financial statements, the Company executed a new
domestic credit agreement in February 2008, which expires in February 2013, with a total borrowing capacity of
$230 million.

The Company believes that its cash and cash equivalents, short-term investments, cash flow from operations and
available credit facilities will be sufficient to meet its working capital and investment requirements for the next
12 months. However, future growth, including potential acquisitions, may require the Company to raise capital
through additional equity or debt financing. There can be no assurance that any such financing would be
available on commercially acceptable terms.

The following table summarizes the maturities of the Company’s significant financial obligations:

(In thousands)

Total

2008

2009

2010

2011

2012

Thereafter

Maturity by fiscal year

Contractual obligations related to
off-balance sheet arrangements:

Operating leases . . . . . . . . . . . . . . . . . . . . .
Foreign currency contracts . . . . . . . . . . . . .

$30,158
286

$9,576
286

$6,353
—

$ 5,517
—

$2,873
—

$2,598
—

$3,241
—

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$30,444

$9,862

$6,353

$ 5,517

$2,873

$2,598

$3,241

Contractual obligations reflected in the

balance sheet:

Long-term debt . . . . . . . . . . . . . . . . . . . . . .
Pension obligations . . . . . . . . . . . . . . . . . . .

$29,683
$ 5,423

$9,310
570

$9,327
456

$11,046
491

—
711

—
458

—
2,737

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$35,106

$9,880

$9,783

$11,537

$ 711

$ 458

$2,737

The Company adopted FIN 48, Accounting for Uncertainty in Income Taxes-an Interpretation of FASB Statement
No. 109 as of January 1, 2007. The Company had $16.6 and $11.7 million of total gross unrecognized tax
benefits at December 31, 2007 and the date of adoption, respectively. The timing of any payments which could
result from these unrecognized tax benefits will depend on a number of factors. Accordingly, the Company
cannot make reasonably reliable estimates of the amount and period of potential cash settlements, if any, with
taxing authorities.

50

Quantitative and Qualitative Disclosure About Market Risks

Entegris’ principal financial market risks are sensitivities to interest rates and foreign currency exchange rates.
The Company’s interest-bearing cash equivalents and certain long-term debt are subject to interest rate
fluctuations. Most of the Company’s long-term debt at December 31, 2007 carries fixed rates of interest. The
Company’s cash equivalents are instruments with maturities of three months or less. A 100 basis point change in
interest rates would potentially increase or decrease annual net income by approximately $0.7 million annually.

The cash flows and earnings of the Company’s foreign-based operations are subject to fluctuations in foreign
exchange rates. The Company occasionally uses derivative financial instruments to manage the foreign currency
exchange rate risks associated with its foreign-based operations. At December 31, 2007, the Company was party
to forward contracts to deliver Japanese yen, Taiwanese dollars, Euros, Israeli new shekels, Malaysia ringgits,
and Singapore dollars with notional values of approximately $8.5 million, $6.0 million, $7.8 million, $1.5
million, $7.0 million and $2.8 million, respectively. A hypothetical 10% change in the foreign currency exchange
rates would potentially result in exchange gains or losses that could increase or decrease net income by
approximately $2.1 million.

On February 6, 2007, the Company entered into a 10-month Japanese yen-based cross-currency interest rate
swap, with aggregate notional principal amounts of 2.4 billion Japanese yen and $20 million that matured on
November 30, 2007. This swap effectively hedged a portion of the Company’s net investment in its Japanese
subsidiary. During the term of this transaction, the Company remitted to, and received from, its counterparty
interest payments based on rates that were reset quarterly equal to three-month Japanese LIBOR and three-month
U.S. LIBOR rates, respectively. The Company designated this hedging instrument as a hedge of a portion of the
net investment in its Japanese subsidiary, and used the spot rate method of accounting to value changes of the
hedging instrument attributable to currency rate fluctuations. Accordingly, a $2.1 million adjustment in the fair
market value of the hedging instrument related to changes in the spot rate was recorded as a charge to “Foreign
currency translation” within accumulated other comprehensive loss in shareholders’ equity in 2007 to offset
changes in a portion of the yen-denominated net investment in the Company’s Japanese subsidiary and will
remain there until the net investment is disposed. The Company recorded $0.7 million in net interest income in
2007 in connection with the cross-currency interest rate swap.

Impact of Inflation

The Company’s consolidated financial statements are prepared on a historical cost basis, which does not
completely account for the effects of inflation. Material and labor expenses are the Company’s primary costs.
The cost of materials, including polymers and stainless steel, was generally flat compared to one year ago due to
increased production capacity of suppliers, despite higher oil prices. Entegris expects the cost of these materials
to increase notably in 2008 due to the tightening of production capacity of its suppliers, a weak U.S. dollar
driving strong demand for these materials overseas, particularly polymer-based resins, and projected higher oil
prices. Labor costs, including taxes and fringe benefits rose slightly in fiscal 2007 and moderate increases also
can be reasonably anticipated for fiscal 2008. The Company's products are sold under contractual arrangements
with its large customers and at current market prices to other customers. Consequently, the Company can adjust
its selling prices, to the extent allowed by competition and contractual arrangements, to reflect cost increases
caused by inflation. However, many of these cost increases may not be recoverable.

51

FACTORS AND UNCERTAINTIES THAT MAY AFFECT FUTURE RESULTS

The matters discussed in this Annual Report on Form 10-K include forward-looking statements within the
meaning of the Private Securities Litigation Reform Act of 1995. These forward-looking statements include but
are not limited to statements about:

•

•

•

•

•

•

our strategy;

our revenues;

sufficiency of our cash resources;

product development;

our research and development and other expenses; and

our operations and legal risks.

Discussions containing these forward-looking statements may be found throughout this report including in the
items entitled “Business” (Item 1), “Risk Factors” (Item 1A), and “Management’s Discussion and Analysis of
Financial Condition and Results of Operations” (Item 7), as well as any amendments thereto reflected in
subsequent filings with the SEC. These statements are based on current management expectations and are subject
to substantial risks and uncertainties which could cause actual results to differ materially from the results
expressed in, or implied by, these forward-looking statements. When used herein or in such statements, the words
“anticipate”, “believe”, “estimate”, “expect”, “may”, “will”, “should” or the negative thereof and similar
expressions as they relate to Entegris or its management are intended to identify such forward-looking
statements. We undertake no obligation to publicly release any revisions to the forward-looking statements or
reflect events or circumstances after the date of this Annual Report on Form 10-K except as required by law.

Item 7a. Quantitative and Qualitative Disclosures about Market Risk.

The information required by this item can be found under the subcaption “Quantitative and Qualitative
Disclosures About Market Risks” of “Management’s Discussion and Analysis of Financial Condition and Results
of Operations” in Item 7.

Item 8.

Financial Statements and Supplementary Data.

The information called for by this item is set forth in the Consolidated Financial Statements covered by the
Report of Independent Registered Public Accounting Firm at the end of this report.

Item 9.

Changes in and Disagreements With Accountants on Accounting and Financial Disclosure.

None.

Item 9A. Controls and Procedures.

(a) EVALUATION OF DISCLOSURE CONTROLS AND PROCEDURES

Management evaluated the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-
15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act), as of
December 31, 2007, the end of the fiscal period covered by this report on Form 10-K. The Securities and
Exchange Commission, or SEC, rules define the term “disclosure controls and procedures” to mean a company’s
controls and other procedures that are designed to ensure that information required to be disclosed in the reports
it files or submits under the Exchange Act is recorded, processed, summarized and reported within the time
period specified in the SEC’s rules and forms. Disclosure controls and procedures include, without limitation,

52

controls and procedures designed to ensure that information required to be disclosed by a company in its reports
filed under the Exchange Act is accumulated and communicated to the company’s management, including its
principal executive and principal financial officers, or persons performing similar functions, as appropriate to
allow timely decisions regarding required disclosure.

Based on the evaluation of the effectiveness of our disclosure controls and procedures by our management team
with the participation of the Chief Executive Officer and the Chief Financial Officer, our Chief Executive Officer
and our Chief Financial Officer have concluded that, as of the end of the period covered by this report, our
disclosure controls and procedures were not effective as of such date because of the existence of a material
weakness in our internal control over financial reporting related to accounting for income taxes as described
below.

(b) MANAGEMENT’S REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

Management is responsible for establishing and maintaining adequate internal control over financial reporting, as
defined in Exchange Act Rule 13a-15(f). The Company’s internal control over financial reporting is a process
designed by, or under the supervision of, the company’s principal executive and principal financial officers, or
persons performing similar functions, and effected by the company’s board of directors, management, and other
personnel, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of
financial statements for external purposes in accordance with U.S. generally accepted accounting principles (U.S.
GAAP) and includes those policies and procedures that:

(1) Pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the

transactions and dispositions of the assets of the company;

(2) Provide reasonable assurance that transactions are recorded as necessary to permit preparation of

financial statements in accordance with U.S. GAAP, and that receipts and expenditures of the company are
being made only in accordance with authorizations of management and directors of the company; and

(3) Provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition,

use, or disposition of the company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that
controls may become inadequate because of changes in conditions, or that the degree of compliance with the
policies and procedures may deteriorate.

Management assessed the effectiveness of the Company’s internal control over financial reporting as of
December 31, 2007. In making this assessment, management used the control criteria framework of the
Committee of Sponsoring Organizations (COSO) of the Treadway Commission published in its report entitled
Internal Control – Integrated Framework. As a result of this assessment, management identified a material
weakness in the internal control over our financial reporting related to ineffective controls over the accounting
for income taxes. Specifically, the Company did not have sufficient tax personnel with adequate expertise to
effectively monitor and review the process to prepare the income tax provision. This control deficiency resulted
in errors in the interim and annual consolidated financial statements related to both the prior and current periods
and there is a reasonable possibility that a material misstatement of the Company’s annual or interim
consolidated financial statements would not be prevented nor detected on a timely basis. Based on this material
weakness, management concluded that the Company’s internal control over financial reporting was not effective
as of December 31, 2007. KPMG LLP, an independent registered public accounting firm, has issued an auditors’
report on the effectiveness of the Company’s internal control over financial reporting as of December 31, 2007.

53

(c) REMEDIATION PLAN RELATED TO 2007 10K MATERIAL WEAKNESS

We have not fully remediated the material weakness relating to accounting for income taxes. Management is
committed to improving the internal control over financial reporting to remediate this material weakness and
ensuring compensating controls are in place, where necessary. Therefore, in response to the foregoing, we, with
the oversight of our Audit Committee, have implemented the following corrective actions and plan to adopt
certain additional measures to remediate our material weakness in accounting for income taxes.

• Completed the transition of the tax department leadership to our recently hired Vice President of Tax

who has significant public accounting, public company and international tax experience.

• Utilized a third-party tax service provider to complete a significant review and reconciliation of all

major deferred tax accounts.

• Utilized a third party tax service provider to complete a review of FIN 48 tax contingencies.

• Hired a new tax manager, in December 2007, with significant public company tax experience.

Additionally, our plan to remediate the material weakness relating to accounting for income taxes includes the
following measures:

• Obtaining the control benefit from recently hired experienced tax staff who have public accounting

and/or public company experience;

• Hiring additional experienced tax professionals with public accounting and/or public company income

tax experience; and

• Continuing to improve our review processes and procedures over the preparation, reconciliation and

analysis of its income tax provision and income tax-related accounts.

(d) CHANGES IN INTERNAL CONTROL OVER FINANCIAL REPORTING

There was no change in the Company’s internal control over financial reporting during the most recently
completed fiscal quarter that has materially affected, or is reasonably likely to materially affect, internal control
over financial reporting.

Item 9B. Other Information.

None.

54

PART III

Item 10. Directors, Executive Officers and Corporate Governance.

The information called for by this item with respect to registrant's directors, including information relating to the
independence of certain directors, identification of the audit committee and the audit committee financial expert
and with respect to corporate governance is set forth under the caption “Election of Directors” and “Corporate
Governance”, respectively in the Company’s definitive Proxy Statement for the Entegris, Inc. Annual Meeting of
Stockholders to be held on May 7, 2008, and to be filed with the Securities and Exchange Commission on or
about April 6, 2008, which information is hereby incorporated herein by reference.

The information called for by this item with respect to registrant's compliance with Section 16(a) of the
Securities Exchange Act of 1934, as amended, is set forth under the caption “Section 16(a) Beneficial Ownership
Reporting Compliance” in the Company’s definitive Proxy Statement for the Entegris, Inc. Annual Meeting of
Stockholders to be held on May 7, 2008, and to be filed with the Securities and Exchange Commission on or
about April 6, 2008, which information is hereby incorporated herein by reference.

Information called for by this item with respect to registrant's executive officers is set forth under “Executive
Officers” in Item 1 of this report.

The Company has adopted a code of ethics, the Entegris, Inc. Code of Business Ethics, which applies to all
employees of the registrant including the registrant’s Chief Executive Officer, Chief Financial Officer and Chief
accounting Officer. A copy of the Entegris, Inc. Code of Business Ethics is posted on our website at
http://www.Entegris.com, under “Investor Relations—Governance”. The Entegris, Inc. Code of Business Ethics
is available in print to any stockholder that requests a copy. A copy of the Entegris, Inc. Code of Business Ethics
may be obtained by contacting Peter W. Walcott, the Company’s Senior Vice President & General Counsel at the
Company’s headquarters. The Company intends to comply with the requirements of Item 10 of Form 8-K with
respect to any waiver of the provisions of the Entegris, Inc. Code of Business Ethics applicable to the registrant’s
Chief Executive Officer, Chief Financial Officer or Chief Accounting Officer by posting notice of any such
waiver at the same location on our website.

Item 11. Executive Compensation.

The information called for by this item is set forth under the caption “COMPENSATION OF EXECUTIVE OFFICERS”,
“MANAGEMENT DEVELOPMENT & COMPENSATION COMMITTEE” and “REPORT OF THE MANAGEMENT
DEVELOPMENT & COMPENSATION COMMITTEE”, respectively, in the Company’s definitive Proxy Statement for
the Entegris, Inc. Annual Meeting of Stockholders to be held on May 7, 2008, and to be filed with the Securities
and Exchange Commission on or about April 6, 2008, which information is hereby incorporated herein by
reference.

55

Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder

Matters.

The following information is provided as of December 31, 2007, with respect to our compensation plans under
which equity securities are authorized for issuance. The only equity securities currently authorized for issuance
under our compensation plans are common stock for awards or options to acquire our common stock.

Plan category

Equity compensation plans
approved by security
holders . . . . . . . . . . . . . . . . . . .

Equity compensation plans not

approved by security
holders . . . . . . . . . . . . . . . . . . .

Total . . . . . . . . . . . . . . . . . . .

Number of securities to be
issued upon exercise of
outstanding options,
warrants and rights
(a)

Weighted-average exercise
price of outstanding
options
(b)

Number of securities remaining
available for future issuance
under equity compensation
plans (excluding securities
reflected in column (a))(1)
(c)

8,007,073

379,270

8,386,343

$8.70

$8.68

$8.70

7,952,720(2)

934,721(3)

8,887,441(2)(3)

(1)

Includes shares of Entegris common stock available for award or to support option grants under the 2001
Equity Incentive Plan and the 2003 Employment Inducement and Acquisition Stock Option Plan as well as
under the 1999 Long Term Incentive and Stock Option Plan and Outside Directors’ Option Plan, each of
first two enumerated plans contains an “evergreen” provision that annually increases the number of shares
available for award or to support option grants by 1% and 0.25%, respectively, of the number of shares of
common stock outstanding on the date of the Annual Meeting of Stockholders.

(2) This figure has been reduced for outstanding restricted shares of common stock and the maximum available

number of performance shares as of December 31, 2007 in the amount of 2,834,660.

(3) This figure has been reduced by 106,763 outstanding restricted shares of common stock as of December 31,

2007.

The securities issued and available for issue pursuant to equity compensation plans not approved by security
holders listed in the table above refers to the Entegris, Inc. 2003 Employment Inducement and Acquisition Stock
Option Plan which was adopted by the Board of Directors of Mykrolis and assumed by the Company by action of
its Board of Directors effective August 10, 2005. This stock option plan provides for the grant of stock options
covering an aggregate of 486,500 shares of the Common stock, $0.01 par value, of the Company to newly hired
(or rehired) employees and to employees of companies acquired by Entegris. The plan has a term of ten years and
provides that all stock options granted under the plan carry an exercise price of fair market value on the date of
grant. This plan also contains an “evergreen” provision that annually increases the number of shares available for
award or to support option grants by 0.25% of the number of shares of common stock outstanding on the date of
the Annual Meeting of Stockholders during the term of the plan.

The information called for by Item 403 of Regulation S-K is set forth under the caption “OWNERSHIP OF
ENTEGRIS COMMON STOCK” in the Company’s definitive Proxy Statement for the Entegris, Inc. Annual Meeting
of Stockholders to be held on May 7, 2008, and to be filed with the Securities and Exchange Commission on or
about April 6, 2008, which information is hereby incorporated herein by reference.

56

Item 13. Certain Relationships and Related Transactions, and Director Independence.

The information called for by this item with respect to certain transactions and relationships between the
registrant and directors, executive officers and five percent stockholders is set forth under the caption
“MANAGEMENT AND ELECTION OF DIRECTORS-Nominees for Election as Directors” in the Company’s definitive
Proxy Statement for the Entegris, Inc. Annual Meeting of Stockholders to be held on May 7, 2008, and to be filed
with the Securities and Exchange Commission on or about April 6, 2008, which information is hereby
incorporated herein by reference.

Item 14. Principal Accountant Fees and Services.

The information called for by this item with respect to the fees paid to and the services performed by the
registrant's principal accountant is set forth under the caption “ACCOUNTANTS” in the Company’s definitive
Proxy Statement for the Entegris, Inc. Annual Meeting of Stockholders to be held on May 7, 2008, and to be filed
with the Securities and Exchange Commission on or about April 6, 2008, which information is hereby
incorporated herein by reference.

57

PART IV

Item 15. Exhibits, Financial Statement Schedules, and Reports on Form 8-K.

(a) The following documents are filed as a part of this report:

1.

Financial Statements. The Consolidated Financial Statements listed under Item 8 of this report and in
the Index to Consolidated Financial Statements on page F-1 of this report that is incorporated by
reference.

2. Exhibits.

A. The following exhibits are incorporated by reference:

Document Incorporated

Referenced Document on file with the Commission

Reg. S-K
Item 601(b)
Reference

(2)

(2)

(2)

(2)

(3)

Agreement and Plan of Merger, dated as of
March 21, 2005, by and among Entegris, Inc.,
Mykrolis Corporation and Eagle DE, Inc.

Agreement and Plan of Merger, dated as of
March 21, 2005, by and between Entegris, Inc.,
and Eagle DE, Inc.

Form of Master Separation and Distribution
Agreement between Millipore Corporation and
Mykrolis Corporation

Form of General Assignment and Assumption
Agreement between Millipore Corporation and
Mykrolis Corporation

Amended and Restated Certificate of
Incorporation of Entegris, Inc.

(3)

By-laws of Entegris, Inc.

(4)

(4)

Form of certificate representing shares of
Common Stock, $.01 par value per share

Rights Agreement dated July 26, 2005, between
Entegris and Wells Fargo Bank, N.A as rights
agent

Included as Annex A in the joint proxy
statement/prospectus included in S-4
Registration Statement of Entegris, Inc. and
Eagle DE, Inc. (No. 333-124719)

Included as Annex B in the joint proxy
statement/prospectus included in S-4
Registration Statement of Entegris, Inc. and
Eagle DE, Inc. (No. 333-124719)

Exhibit 2.1 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

Exhibit 2.2 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

Included as Annex C-2 in the joint proxy
statement/prospectus included in S-4
Registration Statement of Entegris, Inc. and
Eagle DE, Inc. (No. 333-124719)

Included as Annex D in the joint proxy
statement/prospectus included in S-4
Registration Statement of Entegris, Inc. and
Eagle DE, Inc. (No. 333-124719)

Exhibit 4.1 to Form S-4 Registration Statement
of Entegris, Inc. and Eagle DE, Inc.
(No. 333-124719)

Exhibit 4.1 to Entegris, Inc. (Entegris
Minnesota) Current Report on Form 8-K filed
with the Securities and Exchange Commission
on July 29, 2005

(10)

Entegris, Inc. 1999 Long-Term Incentive and
Stock Option Plan*

Entegris, Inc. Registration Statement on
Form S-1 (No. 333-33668)

* A “management contract or compensatory plan”

58

Reg. S-K
Item 601(b)
Reference

(10)

(10)

Document Incorporated

Referenced Document on file with the Commission

Entegris, Inc. Outside Directors’ Stock Option
Plan*

Entegris, Inc. Registration Statement on
Form S-1 (No. 333-33668)

Entegris, Inc. 2000 Employee Stock Purchase
Plan

Entegris, Inc. Registration Statement on
Form S-1 (No. 333-33668)

(10)

2001 Equity Incentive Plan*

(10)

(10)

(10)

(10)

2003 Employment Inducement and Acquisition
Stock Option Plan*

Supplemental Executive Retirement Plan for
Key Salaried Employees*

2002 Deferred Compensation Plan for Senior
Management*

Lease Agreement, dated April 1, 2002 Between
Nortel Networks HPOCS Inc. And Mykrolis
Corporation, relating to Executive office, R&D
and manufacturing facility located at 129
Concord Road Billerica, MA

Exhibit 10.1 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

Exhibit 10.6 to Mykrolis Corporation Form 10-Q
Quarterly Report for the period ended September
27, 2003

Exhibit 10.28 to Mykrolis Corporation
Form 10-K Annual Report for the year ended
December 31, 2002

Exhibit 10.29 to Mykrolis Corporation
Form 10-K Annual Report for the year ended
December 31, 2002

Exhibit 10.1.3 to Mykrolis Corporation
Quarterly Report on Form 10-Q, for the period
ended March 31, 2002

(10)

Master Patent License Agreement

(10)

Master Patent Grantback License Agreement

(10)

Master Trademark License Agreement

(10)

Master Invention Disclosure Assignment

Exhibit 10.8 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

Exhibit 10.9 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

Exhibit 10.11 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

Exhibit 10.12 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

(10)

Master Trade Secret and Know-How
Agreement

Exhibit 10.13 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

(10)

Tax Sharing Agreement

Exhibit 10.14 to Mykrolis Corporation Form S-1
Registration Statement (No. 333-57182)

(10)

(10)

(10)

Amended and Restated Membrane Manufacture
and Supply Agreement

Exhibit 10.1 to Entegris, Inc. Form 10-Q report
for the period ended December 31, 2005

Restricted Stock Award Agreement, dated as of
November 21, 2004, between Mykrolis
Corporation and Gideon Argov*

Exhibit 10.32 to Mykrolis Corporation
Form 10-K Annual Report for the year ended
December 31, 2004

Form of Restricted Stock Award Agreement,
dated as of December 9, 2004, between the
Company and each of its executive officers*

Exhibit 10.34 to Mykrolis Corporation
Form 10-K Annual Report for the year ended
December 31, 2004

* A “management contract or compensatory plan”

59

Reg. S-K
Item 601(b)
Reference

(10)

(10)

(10)

(10)

(10)

(10)

(10)

(10)

(10)

(10)

(10)

Document Incorporated

Referenced Document on file with the Commission

Agreement and Plan of Merger by and among
Mykrolis Corporation, Stingray Merger
Corporation, Extraction Systems, Inc. and the
Representative of the Holders of all of the
Capital Stock of Extraction Systems, Inc. dated
as of March 3, 2005

Exhibit 10.35 to Mykrolis Corporation
Form 10-K Annual Report for the year ended
December 31, 2004

Letter Agreement, dated as of March 21, 2005,
by and between Mykrolis Corporation and
Jean-Marc Pandraud*

Exhibit 10.6 to Mykrolis Corporation’s
Quarterly Report on Form 10-Q for the quarter
ended April 2, 2005

Letter Agreement, dated as of March 21, 2005,
by and between Mykrolis Corporation and
Peter W. Walcott*

Exhibit 10.8 to Mykrolis Corporation’s
Quarterly Report on Form 10-Q for the quarter
ended April 2, 2005

Exhibit 10.13 to Mykrolis Corporation’s
Quarterly Report on Form 10-Q for the quarter
ended April 2, 2005

Entegris, Inc. Registration Statement on
Form S-1 (No. 333-33668)

Entegris, Inc. Registration Statement on
Form S-1 (No. 333-33668)

Amended and Restated Employment
Agreement, dated as of May 4, 2005, by and
between Mykrolis Corporation and Gideon
Argov*

STAT-PRO(R) 3000 and STAT-PRO(R) 3000E
Purchase and Supply Agreement between
Fluoroware, Inc. and Miller Waste Mills, d/b/a
RTP Company, dated April 6, 1998

PFA Purchase and Supply Agreement by and
between E.I. Du Pont De Nemours and
Company and Fluoroware, Inc., dated January
7, 1999, which was made effective retroactively
to November 1, 1998, and supplemented by the
Assignment and Limited Amendment by and
between the same parties and Entegris, Inc.,
dated as of September 24, 1999

Credit Agreement, dated as of June 8, 2007, by
and among Entegris, Inc., Wells Fargo Bank
NA, as agent, and the other banks party thereto

Exhibit 10.1 to Entegris, Inc. Quarterly Report
on Form 10-Q for the quarter ended June 30,
2007

Form of Indemnification Agreement between
Entegris, Inc. and each of its executive officers
and Directors

Exhibit 10.30 to Entegris, Inc. Annual Report on
Form 10- K for the period ended August 27,
2005

Form of Executive Change of Control
Termination Agreement between Entegris, Inc.
and each of its executive officers*

Employment Separation Agreement and
Release between Entegris, Inc. and Stan Geyer
(assumed by the Company)*

Employment Agreement and Release between
Entegris, Inc. and Michael W. Wright, effective
August 6, 2005*

Exhibit 10.31 to Entegris, Inc. Annual Report on
Form 10-K for the period ended August 27, 2005

Exhibit 10.32 to Entegris, Inc. Annual Report on
Form 10-K for the period ended August 27, 2005

Exhibit 10.34 to Entegris, Inc. Annual Report on
Form 10-K for the period ended August 27, 2005

* A “management contract or compensatory plan”

60

Reg. S-K
Item 601(b)
Reference

(10)

(10)

(10)

(10)

(10)

(10)

(10)

(10)

(10)

Document Incorporated

Referenced Document on file with the Commission

Entegris, Inc. 401 (k) Savings and Profit Sharing
Plan (2005 Restatement)*

Exhibit 10.35 to Entegris, Inc. Annual Report on
Form 10-K for the period ended August 27, 2005

Letter Agreement, dated as of August 10, 2005,
by and between Entegris, Inc. and Bertrand Loy*

Exhibit 10.36 to Entegris, Inc. Annual Report on
Form 10-K for the period ended August 27, 2005

Letter Agreement, dated as of August 10, 2005,
by and between Entegris, Inc. and Greg Graves*

Exhibit 10.37 to Entegris, Inc. Annual Report on
Form 10-K for the period ended August 27, 2005

Letter Agreement, dated as of August 10, 2005,
by and between Entegris, Inc. and John
Goodman*

Exhibit 10.39 to Entegris, Inc. Annual Report on
Form 10-K for the period ended August 27, 2005

Form of Entegris, Inc. Restricted Stock Award
Agreement*

Exhibit 10.2 to Entegris, Inc. Quarterly Report on
Form 10-Q for the period ended November 27, 2005

Employment Offer Agreement with John J.
Murphy*

Exhibit 10.2 to Entegris, Inc. Quarterly Report on
Form 10-Q for the period ended December 31, 2005

Entegris, Inc.—Form of 2006 Equity Incentive
Award Agreement

Exhibit 10.1 to Entegris, Inc. Quarterly Report on
Form 10-Q for the period ended April 1, 2006,

Accelerated Stock Buyback Agreement with
Goldman, Sachs & Co., dated as of August 30,
2006 and related Supplemental Confirmation

Collared Accelerated Stock Buyback Agreement
with Goldman, Sachs & Co., dated as of August
30, 2006, and related Supplemental Confirmation

Exhibit 10.1 to Entegris, Inc. Quarterly Report on
Form 10-Q for the period ended September 30, 2006

Exhibit 10.2 to Entegris, Inc. Quarterly Report on
Form 10-Q for the period ended September 30, 2006

B. The Company hereby files as exhibits to this Annual Report on Form 10-K the following documents:

Reg. S-K
Item 601(b)
Reference

Documents Filed Herewith

(10.1)

(10.2)

(10.3)

(10.4)

(21.1)

(23.1)

(24.1)

(31.1)

(31.2)

(32.1)

(32.2)

Translation of Loan Agreement, dated November 2, 2007, between Nihon Entegris KK and
Sumitomo Mitsui Banking Corporation

Translation of Specialised Overdraft Account Agreement, dated November 2, 2007, between
Nihon Entegris KK and Bank of Tokyo-Mitsubishi UFJ, Ltd.

Trust Agreement between Entegris, Inc. Fidelity Management Trust Company and Entegris Inc.
401(k) Savings and Profit Sharing Plan Trust, Dated December 29, 2007.

Entegris, Inc.—Form of 2007 Equity Incentive Award Agreement*

Subsidiaries of Entegris, Inc.

Consent of Independent Registered Public Accounting Firm

Power of Attorney by the Directors of Entegris, Inc.

Certifications required by Rule 13a-14(a) in accordance with Section 302 of the Sarbanes-Oxley
Act of 2002.

Certifications required by Rule 13a-14(a) in accordance with Section 302 of the Sarbanes-Oxley
Act of 2002.

Certifications required by Rule 13a-14(b) and 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002.

Certifications required by Rule 13a-14(b) and 18 U.S.C. Section 1350, as adopted pursuant to
Section 906 of the Sarbanes-Oxley Act of 2002.

* A “management contract or compensatory plan”

61

SIGNATURES

Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Registrant

has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

ENTEGRIS, INC.

Dated: March 3, 2008

By

/s/ GIDEON ARGOV

Gideon Argov

President & Chief Executive Officer

Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by

the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

sIGNATURE

TITLE

DATE

/s/ GIDEON ARGOV

Gideon Argov

Chief Executive Officer and
Director

March 3, 2008

/s/ GREGORY B. GRAVES

Chief Financial Officer

March 3, 2008

Gregory B. Graves

/s/

LYNN BLAKE
Lynn Blake

JAMES E. DAUWALTER*
James E. Dauwalter

MICHAEL A. BRADLEY*
Michael A. Bradley

MICHAEL P.C. CARNS*
Michael P.C. Carns

DANIEL W. CHRISTMAN*
Daniel W. Christman

GARY F. KLINGL*
Gary F. Klingl

PAUL L.H. OLSON*
Paul L.H. Olson

ROGER D. MCDANIEL*
Roger D. McDaniel

BRIAN F. SULLIVAN*
Brian F. Sullivan

*By

/s/ PETER W. WALCOTT

PETER W. WALCOTT, ATTORNEY-IN-FACT

Chief Accounting Officer

March 3, 2008

March 3, 2008

March 3, 2008

March 3, 2008

March 3, 2008

March 3, 2008

March 3, 2008

March 3, 2008

March 3, 2008

Director
(Chairman of the Board)

Director

Director

Director

Director

Director

Director

Director

62

ENTEGRIS, INC.
INDEX TO FINANCIAL STATEMENTS

Reports of Independent Registered Public Accounting Firm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-2

Consolidated Balance Sheets at December 31, 2007 and 2006 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-4

Consolidated Statements of Operations for the years ended December 31, 2007 and December 31, 2006,

the four months ended December 31, 2005 and the year ended August 27, 2005 . . . . . . . . . . . . . . . . . . . . F-5

Consolidated Statements of Shareholders’ Equity and Comprehensive Income (Loss) for the years ended

December 31, 2007 and 2006, the four months ended December 31, 2005 and the year ended
August 27, 2005 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-6

Consolidated Statements of Cash Flows for the years ended December 31, 2007 and December 31, 2006,

four months ended December 31, 2005 and the year ended August 27, 2005 . . . . . . . . . . . . . . . . . . . . . . . F-8

Notes to Consolidated Financial Statements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . F-9

F-1

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

The Board of Directors and Shareholders
Entegris, Inc.:

We have audited the accompanying consolidated balance sheets of Entegris, Inc. and subsidiaries (the Company)
as of December 31, 2007 and 2006, and the related consolidated statements of operations, shareholders' equity
and comprehensive income (loss), and cash flows for the years ended December 31, 2007, and 2006, the four-
month period ended December 31, 2005, and the year ended August 27, 2005. We also have audited the
Company’s internal control over financial reporting as of December 31, 2007, based on the criteria established in
Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway
Commission (COSO). The Company's management is responsible for these consolidated financial statements, for
maintaining effective internal control over financial reporting, and for its assessment of the effectiveness of
internal control over financial reporting, included in the accompanying Item 9A.(b) Management’s Report on
Internal Control Over Financial Reporting. Our responsibility is to express an opinion on these consolidated
financial statements and an opinion on the Company's internal control over financial reporting based on our
audits.

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board
(United States). Those standards require that we plan and perform the audits to obtain reasonable assurance about
whether the financial statements are free of material misstatement and whether effective internal control over
financial reporting was maintained in all material respects. Our audits of the consolidated financial statements
included examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements,
assessing the accounting principles used and significant estimates made by management, and evaluating the
overall financial statement presentation. Our audit of internal control over financial reporting included obtaining
an understanding of internal control over financial reporting, assessing the risk that a material weakness exists,
and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk.
Our audits also included performing such other procedures as we considered necessary in the circumstances. We
believe that our audits provide a reasonable basis for our opinions.

A company's internal control over financial reporting is a process designed to provide reasonable assurance
regarding the reliability of financial reporting and the preparation of financial statements for external purposes in
accordance with generally accepted accounting principles. A company's internal control over financial reporting
includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail,
accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable
assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance
with generally accepted accounting principles, and that receipts and expenditures of the company are being made
only in accordance with authorizations of management and directors of the company; and (3) provide reasonable
assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the
company's assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect
misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that
controls may become inadequate because of changes in conditions, or that the degree of compliance with the
policies or procedures may deteriorate.

A material weakness is a deficiency, or a combination of deficiencies, in internal control over financial reporting,
such that there is a reasonable possibility that a material misstatement of the Company’s annual or interim
financial statements will not be prevented or detected on a timely basis. A material weakness related to
accounting for income taxes has been identified and included in management’s assessment. This material
weakness was considered in determining the nature, timing, and extent of audit tests applied in our audit of the
2007 consolidated financial statements.

F-2

In our opinion, the consolidated financial statements referred to above present fairly, in all material respects, the
financial position of Entegris, Inc. as of December 31, 2007 and 2006, and the results of its operations and its
cash flows for the years ended December 31, 2007, and 2006, the four-month period ended December 31, 2005,
and the year ended August 27, 2005, in conformity with U.S. generally accepted accounting principles.

Also, in our opinion, because of the effect of the aforementioned material weakness on the achievement of the
objectives of the control criteria, the Company has not maintained effective internal control over financial
reporting as of December 31, 2007, based on criteria established in Internal Control—Integrated Framework
issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO). Our opinion on the
effectiveness of internal control over financial reporting does not affect our opinion on the consolidated financial
statements.

As discussed in Note 15 to the consolidated financial statements, the Company adopted the provisions of
Financial Accounting Standards Board Interpretation No. 48 “Accounting for Uncertainty in Income Taxes an
interpretation of FASB Statement No. 109” as of January 1, 2007.

KPMG LLP

Minneapolis, Minnesota
March 3, 2008

F-3

ENTEGRIS, INC. AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS

December 31, 2007 December 31, 2006

(In thousands, except share data)

ASSETS
Current assets:

Cash and cash equivalents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
Trade accounts and notes receivable, net
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred tax assets and deferred tax charges . . . . . . . . . . . . . . . . . . . . .
Assets of discontinued operations and other assets held for sale . . . . . .
Other current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Property, plant and equipment, net
Other assets:

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill
Other intangible assets, net
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred tax assets and other noncurrent tax assets . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 160,655
—
112,053
73,120
23,238
4,187
9,368

382,621

121,157

13,871
402,125
76,370
35,323
3,774

$ 154,806
120,168
127,396
93,426
45,149
7,903
7,473

556,321

120,987

7,731
394,531
68,877
5,157
4,014

Total assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$1,035,241

$1,157,618

LIABILITIES AND SHAREHOLDERS’ EQUITY

Current liabilities:

Current maturities of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Short-term borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income taxes payable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Liabilities of discontinued operations and assets held for sale . . . . . . . .

$

9,310
17,802
24,260
57,659
12,493
4,225

Total current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

125,749

$

Long-term debt, less current maturities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Pension benefit obligation and other liabilities . . . . . . . . . . . . . . . . . . . . . . . .
Deferred tax liabilities and other noncurrent tax liabilities . . . . . . . . . . . . . . .

Commitments and contingent liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Shareholders’ equity:

Preferred stock, par value $.01; 5,000,000 shares authorized; none

issued and outstanding as of December 31, 2007 and 2006 . . . . . . . .

Common stock, par value $.01; 400,000,000 shares authorized; issued

and outstanding shares: 115,355,560 and 132,770,676 . . . . . . . . . . . .
Additional paid-in capital
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prepaid forward contract for share repurchase . . . . . . . . . . . . . . . . . . . .
Retained earnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive income (loss) . . . . . . . . . . . . . . . . . .

Total shareholders’ equity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20,373
21,320
15,490

—

—

1,154
701,510
—
145,462
4,183

852,309

Total liabilities and shareholders’ equity . . . . . . . . . . . . . . . . . .

$1,035,241

See the accompanying notes to consolidated financial statements.

F-4

401
—
24,952
56,479
10,025
842

92,699

2,995
20,356
25,588

—

—

1,328
793,058
(5,000)
228,936
(2,342)

1,015,980

$1,157,618

ENTEGRIS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share data)

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Sales to non-affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sales to affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$626,238
—

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gross profit

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Selling, general and administrative expenses . . . . . . . . . . .
Engineering, research and development expenses . . . . . . .

Operating profit (loss) . . . . . . . . . . . . . . . . . . . . . . . .
Interest income, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .
Other (income) expense, net

Income (loss) before income taxes and equity

in (earnings) loss of affiliates . . . . . . . . . . . . . . . .
Income tax expense (benefit) . . . . . . . . . . . . . . . . . . . . . . . .
Equity in net (earnings) loss of affiliates . . . . . . . . . . . . . . .

Income (loss) from continuing operations . . . . . . . .

626,238
360,001

266,237
182,792
39,727

43,718
(5,245)
(7,656)

56,619
10,356
(93)

46,356

(Loss) income from operations of discontinued

businesses, net of taxes . . . . . . . . . . . . . . . . . . . . . . . . . .

(891)

Impairment loss on assets of discontinued

businesses, net of taxes . . . . . . . . . . . . . . . . . . . . . . . . . .

(1,106)

(Loss) income from discontinued operations,

net of taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(1,997)

$672,882

$199,644

—

672,882
367,804

305,078
188,311
38,074

78,693
(9,205)
(1,658)

89,556
26,936
(531)

63,151

—

199,644
129,437

70,207
77,253
13,904

(20,950)
(2,440)
62

(18,572)
(8,713)
(70)

(9,789)

Year ended
August 27,
2005

$332,654
14,691

347,345
209,162

138,183
110,341
18,188

9,654
(2,538)
(2,115)

14,307
1,154
247

12,906

315

—

315

(1,867)

(3,513)

(6,668)

—

(8,535)

(3,513)

Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 44,359

$ 63,466

$ (18,324)

$ 9,393

Basic earnings (loss) per common share:

Continuing operations . . . . . . . . . . . . . . . . . . . . . . . . .
Discontinued operations . . . . . . . . . . . . . . . . . . . . . . .
Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted earnings (loss) per common share:

Continuing operations . . . . . . . . . . . . . . . . . . . . . . . . .
Discontinued operations . . . . . . . . . . . . . . . . . . . . . . .
Net income (loss) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

$

$

$

0.38
(0.02)
0.36

0.37
(0.02)
0.36

$

$

$

$

0.47
0.00
0.47

0.46
0.00
0.46

$

$

$

$

(0.07)
(0.06)
(0.14)

(0.07)
(0.06)
(0.14)

$

$

$

$

0.17
(0.05)
0.12

0.16
(0.04)
0.12

Weighted shares outstanding

Basic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

122,557
124,940

135,116
138,492

135,437
135,437

77,137
79,328

See the accompanying notes to consolidated financial statements.

F-5

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S

ENTEGRIS, INC. AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

Operating activities:
Net income (loss)
Adjustments to reconcile net income (loss) to net cash provided by

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

operating activities:
Loss (income) from discontinued operations . . . . . . . . . . . . . . . . . . . . . . . . .
Depreciation and amortization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stock-based compensation expense . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Impairment of property and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Impairment of intangibles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for doubtful accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision for deferred income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charge for fair value mark-up of acquired inventory sold . . . . . . . . . . . . . . .
Tax benefit from employee stock plans . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from employee stock plans . . . . . . . . . . . . . . . . . . . . . . . .
Equity in net (earnings) loss of affiliates . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of property and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gain on sale of equity investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Changes in operating assets and liabilities, excluding effects of acquisitions:
Trade accounts receivable and notes receivable . . . . . . . . . . . . . . . . . . . . .
Trade accounts receivable due from affiliates . . . . . . . . . . . . . . . . . . . . . . .
Inventories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts payable and accrued liabilities . . . . . . . . . . . . . . . . . . . . . . . . . .
Other current assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income taxes payable and refundable income taxes . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by operating activities . . . . . . . . . . . . . . . . . . . . . .

Investing activities:
Acquisition of property and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition of businesses, net of cash acquired . . . . . . . . . . . . . . . . . . . . . . . . .
Purchase of intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from sales of property and equipment . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from sale of equity investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchase of equity investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Purchases of short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Proceeds from sale or maturities of short-term investments . . . . . . . . . . . . . . . .
Cash and cash equivalents acquired through acquisition of Mykrolis . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by (used in) investing activities . . . . . . . . . . . . . . .

Financing activities:
Principal payments on short-term borrowings and long-term debt . . . . . . . . . . .
Proceeds from short-term borrowings and long-term debt . . . . . . . . . . . . . . . . .
Repurchase and retirement of common stock . . . . . . . . . . . . . . . . . . . . . . . . . . .
Excess tax benefit from employee stock plans . . . . . . . . . . . . . . . . . . . . . . . . . .
Issuance of common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net cash (used in) provided by financing activities . . . . . . . . . . . . . .

Discontinued operations:
Net cash provided by (used in) operating activities . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by (used in) investing activities . . . . . . . . . . . . . . . . . . . . . . .
Net cash provided by (used in) discontinued operations . . . . . . . . . .
Effect of exchange rate changes on cash and cash equivalents . . . . . . . . . . . . . .
Increase (decrease) in cash and cash equivalents . . . . . . . . . . . . . . . .
Cash and cash equivalents at beginning of period . . . . . . . . . . . . . . . . . . . . .
Cash and cash equivalents at end of period . . . . . . . . . . . . . . . . . . . . . . . . . .

Supplemental Cash Flow Information
Non-cash transactions:

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

$ 44,359

$ 63,466

$ (18,324)

$

9,393

1,997
43,776
10,344
4,098
235
(227)
(20,434)
836
—
(244)
(93)
(274)
(6,068)

20,054
—
24,061
(2,935)
(1,695)
14,682
(455)
132,017

(26,919)
(44,911)
—
2,021
6,568
(6,126)
(269,822)
390,915
—
(926)

50,800

(88,115)
131,063
(256,109)
244
29,856

(183,061)

1,237
—

1,237

4,856

5,849
154,806

(315)
42,905
14,776
1,505
—
(508)
11,155
—
—
(3,031)
(531)
(903)
—

(16,960)
—
(24,280)
(10,357)
3,189
7,669
8,296
96,076

(30,860)
—
(1,008)
3,866
—
—

(170,205)
181,412
—
(575)

(17,370)

(3,087)
—

(100,000)
3,031
20,019

(80,037)

1,754
13,017

14,771

(1,472)

11,968
142,838

8,535
13,754
11,053
3,034
—
(609)
(11,699)
17,837
—
(104)
(70)
(103)
—

7,275
—
1,123
(3,862)
(2,331)
(3,106)
195
22,598

(10,311)
—
(732)
113
—
—
(14,265)
12,079
—
—

(13,116)

(22,853)
3,478
—
104
3,839

(15,432)

611
1,863

2,474

(3,724)

(7,200)
150,038

3,513
23,599
5,465
3,321
—
212
(5,047)
5,946
821
—
247
(901)
(2,914)

451
4,790
2,522
4,037
79
(3,912)
701
52,323

(19,472)
(10,157)
(727)
2,191
5,020
—

(108,766)
93,235
97,498
(15)

58,807

(21,568)
22,129
(1,830)
—
4,335

3,066

(5,511)
(1,286)

(6,797)

426

107,825
42,213

$ 160,655

$ 154,806

$142,838

$ 150,038

Acquisition of Mykrolis, net of transaction costs . . . . . . . . . . . . . . . . . . . . . .
Equipment purchases in accounts payable . . . . . . . . . . . . . . . . . . . . . . . . . . .

Schedule of interest and income taxes paid:

Interest paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income taxes, net of refunds received . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

—
1,198

691
3,794

$

$
$

—
—

$
$

463
2,502

$
$

—
—

367
683

$ 637,609
—

$
$

840
9,482

See accompanying notes to consolidated financial statements.

F-8

ENTEGRIS, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(1) SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Nature of Operations and Principles of Consolidation Entegris is a worldwide developer, manufacturer and
supplier of materials integrity management solutions to the microelectronics industry in general and to the
semiconductor and data storage markets in particular. The consolidated financial statements include the accounts
of the Company and its majority-owned subsidiaries. Intercompany profits, transactions and balances have been
eliminated in consolidation.

The Company was incorporated in Delaware in June 2005 under the name Eagle DE, Inc. (Eagle DE) as a wholly
owned subsidiary of Entegris, Inc., a Minnesota corporation (Entegris Minnesota). Effective August 6, 2005,
Entegris Minnesota and Mykrolis Corporation, a Delaware corporation, completed a strategic merger of equals
transaction, pursuant to which they were each merged into the Company to carry on the combined businesses.
Pursuant to the merger the Company’s name was changed to Entegris, Inc. The stock-for-stock transaction was
accounted for under the purchase method of accounting as an acquisition of Mykrolis by the Company.

Fiscal Year On December 13, 2005, the Company’s Board of Directors approved a change in fiscal year end
from a 52-week or 53-week fiscal year period ending on the last Saturday of August to a fiscal year ending
December 31. The Company’s new fiscal quarters consist of 13 week periods that end on Saturday, except in the
fourth quarter. The Company’s fiscal quarters in 2007 ended on March 31, 2007, June 30, 2007, September 29,
2007 and December 31, 2007. As a result, the financial periods presented and discussed are as follows: (i) the
years ended December 31, 2007 and 2006 represent the twelve months ended December 31, 2007 and 2006,
respectively; (ii) the four-month transition period represents the four months ended December 31, 2005; and
(iii) the year ended August 27, 2005 represents the twelve months ended August 27, 2005.

Basis of Presentation Certain amounts reported in previous years have been reclassified to conform to the
current year’s presentation. These classifications were largely due to the classification of discontinued operations
and had no effect on the amounts of total assets, net income, shareholders’ equity or cash flow of the Company.

In the fourth quarter and year ended December 31, 2007, the Company identified certain errors, primarily related
to prior years, in its tax-related accounts. The impact of correcting these errors increased income tax expense in
the fourth quarter and year ended December 31, 2007 by $1.9 million and $0.8 million, respectively, with
corresponding increases to the income taxes payable and reserves for tax contingencies, and a decrease to
deferred tax assets. Neither the origination nor the correction of the errors was material to the Company’s
consolidated financial statements.

The Company had 400 million shares of authorized common stock at December 31, 2007 and 2006, as indicated
in the accompanying consolidated balance sheets. The Company erroneously reflected authorized common shares
of 200 million in its 2006 report.

Use of Estimates The preparation of consolidated financial statements in conformity with accounting principles
generally accepted in the United States requires management to make estimates and assumptions that affect the
reported amounts of assets and liabilities, particularly receivables, inventories, goodwill and intangibles, accrued
expenses and income taxes and related accounts, and disclosure of contingent assets and liabilities at the date of
the consolidated financial statements and the reported amounts of revenues and expenses during the reporting
period. Actual results could differ from those estimates.

Share-based Compensation In December 2004, the Financial Accounting Standards Board (“FASB”) issued
Statement of Financial Accounting Standard (“SFAS”) No. 123R, Share-Based Payment. SFAS No. 123R
focuses primarily on accounting for transactions in which an entity obtains employee services through share-

F-9

based payment transactions. SFAS No. 123R requires a public entity to measure the cost of employee services
received in exchange for the award of equity instruments based on the fair value of the award at the date of grant.
The cost is to be recognized over the period during which an employee is required to provide services in
exchange for the award.

SFAS No. 123R also requires the benefit of tax deductions in excess of recognized compensation expense to be
reported as a financing cash flow, rather than as an operating cash flow as prescribed under previous accounting
rules. This requirement reduces net operating cash flows and increases net financing cash flows in periods
subsequent to adoption. Total cash flows remain unchanged from those reported under previous accounting rules.
Effective August 28, 2005, the Company adopted the provisions of SFAS No. 123R using the modified
prospective method. Results of operations for prior annual periods have not been restated to reflect recognition of
stock-based compensation expense. Upon adoption of SFAS No. 123R, the Company applied an estimated
forfeiture rate to unvested awards. Previously, the Company recorded forfeitures as incurred.

Prior to the adoption of SFAS No. 123R, the Company followed the intrinsic value method in accordance with
APB 25 to account for its employee stock options and employee share purchase plan. Accordingly, no
compensation expense was recognized for share purchase rights granted in connection with the issuance of stock
options under the Company’s employee stock option plan or employee stock purchase plan; however,
compensation expense was recognized in connection with the issuance of restricted stock awards. The adoption
of SFAS No. 123R primarily resulted in a change in the Company’s method of recognizing stock-based
compensation and estimating forfeitures for unvested awards. See Note 16 to the Consolidated Financial
Statements for additional information on share-based compensation.

Cash, Cash Equivalents and Short-term Investments Cash and cash equivalents include cash on hand and
highly liquid debt securities with original maturities of three months or less, which are valued at cost. Debt
securities with original maturities greater than three months and remaining maturities of less than one year are
classified and accounted for as available for sale and are recorded at fair value, and are classified as short-term
investments.

Allowance for Doubtful Accounts An allowance for uncollectible trade receivables is estimated based on a
combination of write-off history, aging analysis and any specific, known troubled accounts.

Inventories Inventories are stated at the lower of cost or market. Cost is determined by the first-in, first-out
(FIFO) method.

Property, Plant, and Equipment Property, plant and equipment are carried at cost and are depreciated
principally on the straight-line method over the estimated useful lives of the assets. When assets are retired or
disposed of, the cost and related accumulated depreciation are removed from the accounts, and gains or losses are
recognized in the same period. Maintenance and repairs are expensed as incurred; significant additions and
improvements are capitalized. Property, plant and equipment are reviewed for impairment whenever events or
changes in circumstances indicate that the carrying amount of an asset or group of asset(s) may not be
recoverable based on estimated future undiscounted cash flows. The amount of impairment, if any, is measured
as the difference between the net book value and the estimated fair value of the asset(s).

Investments The Company’s nonmarketable investments are accounted for under either the cost or equity
method of accounting, as appropriate. All equity investments are periodically reviewed to determine whether
declines, if any, in fair value below cost basis are other-than-temporary. If the decline in fair value is determined
to be other-than-temporary, an impairment loss is recorded and the investment written down to a new cost basis.

Fair Value of Financial Instruments The carrying value of cash equivalents, short-term investments, accounts
receivable, accounts payable and short-term debt approximates fair value due to the short maturity of those
instruments. The fair value of long-term debt was estimated using discounted cash flows based on market interest
rates for similar instruments and approximated its carrying value at December 31, 2007.

F-10

Goodwill and Other Intangible Assets Goodwill is the excess of the purchase price over the fair value of net
assets of acquired businesses. The Company does not amortize goodwill, but tests for impairment at least
annually. Other amortizable intangible assets include, among other items, patents, unpatented and other
developed technology and customer-based intangibles, and are amortized using the straight-line method over
their respective estimated useful lives of 3 to 12 years. The Company reviews intangible assets for impairment if
changes in circumstances or the occurrence of events suggest the remaining value is not recoverable.

Derivative Financial Instruments SFAS No. 133, Accounting for Derivative Instruments and Hedging
Activities, requires the Company to record derivatives as assets or liabilities on the balance sheet and to measure
such instruments at fair value. Changes in fair value of derivatives are recorded each period in current results of
operations or other comprehensive income, depending on whether the derivative is designated as part of a hedge
transaction.

The Company periodically enters into forward foreign currency contracts to reduce exposures relating to rate
changes in certain foreign currencies. Certain exposures to credit losses related to counterparty nonperformance
exist. However, the Company does not anticipate nonperformance by the counterparties since they are large,
well-established financial institutions. Except as described in the following paragraph, none of these derivatives
is accounted for as a hedge transaction under the provisions of SFAS No. 133. Accordingly, changes in the fair
value of forward foreign currency contracts are recorded as a component of net income. The fair values of the
Company’s derivative financial instruments are based on prices quoted by financial institutions for these
instruments. The Company was a party to forward foreign currency contracts with notional amounts of $33.6
million and $58.3 million at December 31, 2007 and 2006, respectively.

On February 6, 2007, the Company entered into a 10-month Japanese yen-based cross-currency interest rate
swap, with aggregate notional principal amounts of 2.4 billion Japanese yen and $20 million that matured on
November 30, 2007. This swap effectively hedged a portion of the Company’s net investment in its Japanese
subsidiary. During the term of this transaction, the Company remitted to, and received from, its counterparty
interest payments based on rates that were reset quarterly equal to three-month Japanese LIBOR and three-month
U.S. LIBOR rates, respectively. The Company designated this hedging instrument as a hedge of a portion of the
net investment in its Japanese subsidiary, and used the spot rate method of accounting to value changes of the
hedging instrument attributable to currency rate fluctuations. As such, a $2.1 million adjustment in the fair
market value of the hedging instrument related to changes in the spot rate was recorded as a charge to “Foreign
currency translation” in shareholders’ equity in 2007 to offset changes in a portion of the yen-denominated net
investment in the Company’s Japanese subsidiary and will remain there until the net investment is disposed. The
Company recorded $0.7 million in net interest income in 2007 in connection with the cross-currency interest rate
swap.

Foreign Currency Translation Assets and liabilities of foreign subsidiaries are translated from foreign
currencies into U.S. dollars at period-end exchange rates, and the resulting gains and losses arising from
translation of net assets located outside the U.S. are recorded as a cumulative translation adjustment, a
component of accumulated other comprehensive income (loss) in the consolidated balance sheets. Income
statement amounts are translated at the weighted average exchange rates for the year. Translation adjustments are
not adjusted for income taxes as substantially all translation adjustments relate to permanent investments in
non-U.S. subsidiaries. Gains and losses resulting from foreign currency transactions are included in other
income, net in the consolidated statements of operations.

Revenue Recognition/Concentration of Risk Revenue and the related cost of sales are generally recognized
upon shipment of the products. Revenue for product sales is recognized upon delivery, when title and risk of loss
have been transferred to the customer; collectibility is reasonably assured, and pricing is fixed or determinable.

The Company provides for estimated returns and warranty obligations when the revenue is recorded. The
Company sells its products throughout the world primarily to companies in the microelectronics industry. The

F-11

Company performs continuing credit evaluations of its customers and generally does not require collateral.
Letters of credit may be required from its customers in certain circumstances. The Company maintains an
allowance for doubtful accounts which management believes is adequate to cover losses on trade receivables.

Certain materials included in the Company’s products are obtained from a single source or a limited group of
suppliers. Although the Company seeks to reduce dependence on those sole and limited source suppliers, the
partial or complete loss of these sources could have at least a temporary adverse effect on the Company’s results
of operations. Furthermore, a significant increase in the price of one or more of these components could
adversely affect the Company’s results of operations.

Income Taxes Deferred income taxes are provided in amounts sufficient to give effect to temporary differences
between financial and tax reporting. The Company accounts for tax credits as reductions of income tax expense.
The Company utilizes the asset and liability method for computing its deferred income taxes. Under the asset and
liability method, deferred tax assets and liabilities are based on the temporary difference between the financial
statement and tax basis of assets and liabilities and the enacted tax rates expected to apply to taxable income in
the years in which these temporary differences are expected to be recovered or settled. The effect on deferred tax
assets and liabilities of a change in tax rates is recognized in income in the period that includes the enactment
date. The Company collects various sales and value-added taxes on certain product and service sales, which are
accounted for on a net basis.

Except as indicated in Note 15 as relates to 11.4 billion yen (approximately $100 million), the Company intends
to continue to reinvest its remaining undistributed international earnings in its international operations
indefinitely; therefore, no U.S. tax expense has been recorded to cover the repatriation of such undistributed
earnings.

The Company’s policy for recording interest and penalties associated with audits and unrecognized tax benefits
is to record such items as a component of income before taxes. Penalties are recorded in other expense and
interest paid or received is recorded in interest expense or interest income, respectively, in the statement of
operations.

Comprehensive Income (Loss) Comprehensive income (loss) represents the change in shareholders’ equity
resulting from other than shareholder investments and distributions. The Company’s foreign currency translation
adjustments, unrealized gains and losses on marketable securities and minimum pension liability adjustments are
included in accumulated other comprehensive income (loss). Comprehensive income (loss) and the components
of accumulated other comprehensive income (loss) are presented in the accompanying consolidated statements of
shareholders’ equity and comprehensive income (loss).

Recent Accounting Pronouncements In June 2006, the Financial Accounting Standards Board (FASB) ratified
the Emerging Issues Task Force (EITF) consensus on EITF Issue No. 06-3, How Taxes Collected From
Customers and Remitted to Governmental Authorities Should Be Presented in the Income Statement (EITF
No. 06-3). The scope of EITF No. 06-3 includes any tax assessed by a governmental authority that is directly
imposed on a revenue-producing transaction between a seller and a customer, and provides that a company may
adopt a policy of presenting taxes either gross within revenue or on a net basis. For any such taxes that are
reported on a gross basis, a company should disclose the amounts of those taxes for each period for which an
income statement is presented if those amounts are significant. This statement is effective to financial reports for
interim and annual reporting periods beginning after December 15, 2006. EITF No. 06-3 became effective for the
Company as of January 1, 2007. The Company collects various sales and value-added taxes on certain product
and service sales, which are accounted for on a net basis.

In July 2006, the FASB issued FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes, an
interpretation of FASB Statement No. 109 (FIN No. 48). FIN No. 48 was effective for the Company as of
January 1, 2007. FIN No. 48 defines the threshold for recognizing the benefits of tax positions in the financial
statements as “more-likely-than-not” to be sustained upon examination. The interpretation also provides

F-12

guidance on the de-recognition, measurement and classification of income tax uncertainties, along with any
related interest and penalties. FIN No. 48 also requires expanded disclosure at the end of each annual reporting
period including a tabular reconciliation of unrecognized tax benefits. In accordance with FIN No. 48, the
Company reports the difference between the net amount of assets and liabilities recognized in the statement of
financial position prior to and after the application of FIN No. 48 as a cumulative effect adjustment to the
January 1, 2007 balance of retained earnings. The adoption of FIN No. 48 is further described in Note 15.

In September 2006, the FASB issued Statement of Financial Accounting Standard (SFAS) No. 157, Fair Value
Measurements (SFAS No. 157). This statement provides a single definition of fair value, a framework for
measuring fair value and expanded disclosures concerning fair value. Previously, different definitions of fair
value were contained in various accounting pronouncements, creating inconsistencies in measurement and
disclosures. SFAS No. 157 applies under those previously issued pronouncements that prescribe fair value as the
relevant measure of value, except SFAS No. 123(R) and related interpretations and pronouncements that require
or permit measurement similar to fair value, but are not intended to measure fair value. SFAS No. 157 is
effective for the Company as of January 1, 2008. The adoption of SFAS No. 157 is currently not expected to
have a material impact on the Company’s consolidated financial statements.

In February 2008, the FASB issued FASB Staff Position (FSP) Financial Accounting Standard (FAS) 157-1,
Application of FASB Statement No. 157 to FASB Statement No. 13 and Its Related Interpretive Accounting
Pronouncements That Address Leasing Transactions, and FSP FAS 157-2, Effective Date of FASB Statement
No. 157. FSP FAS 157-1 removes leasing from the scope of SFAS No. 157, “Fair Value Measurements.” FSP
FAS 157-2 delays the effective date of SFAS No. 157 from 2008 to 2009 for all nonfinancial assets and
nonfinancial liabilities, except those that are recognized or disclosed at fair value in the financial statements on a
recurring basis (at least annually). See SFAS No. 157 discussion above.

In February 2007, the FASB issued SFAS No. 159, The Fair Value Option for Financial Assets and Financial
Liabilities—Including an amendment of FASB Statement No. 115 (SFAS No. 159). SFAS No. 159 permits
entities to choose to measure many financial instruments and certain other items at fair value. The objective is to
improve financial reporting by providing entities with the opportunity to mitigate volatility in reported earnings
caused by measuring related assets and liabilities differently without having to apply complex hedge accounting
provisions. SFAS 159 is effective for the Company as of January 1, 2008. The adoption of SFAS No. 159 is
currently not expected to have a material impact on the Company’s consolidated financial statements.

In December 2007, the FASB issued SFAS No. 141 (revised 2007) Business Combinations (SFAS No. 141(R)).
SFAS No. 141(R) retains the fundamental requirements of the original pronouncement requiring that the
purchase method be used for all business combinations. SFAS No. 141(R) defines the acquirer as the entity that
obtains control of one or more businesses in the business combination, establishes the acquisition date as the date
that the acquirer achieves control and requires the acquirer to recognize the assets acquired, liabilities assumed
and any noncontrolling interest at their fair values as of the acquisition date. SFAS No. 141(R) also requires that
acquisition-related costs be recognized separately from the acquisition. SFAS No. 141(R) is effective for the
Company in 2009. The Company is currently assessing the impact of SFAS No. 141(R) on its consolidated
financial statements.

In December 2007, the FASB issued Statement No. 160, Noncontrolling Interests in Consolidated Financial
Statements (SFAS No. 160). SFAS No. 160 clarifies that a noncontrolling interest in a subsidiary should be
reported as equity in the consolidated financial statements. Consolidated net income should include the net
income for both the parent and the noncontrolling interest with disclosure of both amounts on the consolidated
statement of income. The calculation of earnings per share will continue to be based on income amounts
attributable to the parent. SFAS No. 160 is effective for the Company in 2009. The Company is currently
assessing the impact of SFAS No. 160 on its consolidated financial statements.

F-13

(2) ACQUISITIONS AND DIVESTITURES

On August 16, 2007, the Company acquired the specialty coatings business of a privately-held company located
in Burlington, Massachusetts. This specialty coatings business develops and applies proprietary low-temperature,
high-purity coatings to critical wafer handling components used in ion implant operations as well as to other
critical components used in semiconductor manufacturing and other applications.

The purchase price was $44.9 million in cash, including transaction costs of $0.2 million and contingent
consideration of $3.1 million paid to the seller as certain financial metrics related to calendar 2007 results were
met. This acquisition was accounted for under the purchase method of accounting and the results of operations of
this specialty coatings business are included in the Company’s consolidated financial statements since August 16,
2007. Pro forma results are not included as this acquisition does not constitute a material business combination.

The above purchase price has been preliminarily allocated based on estimates of the fair values of assets acquired
and liabilities assumed, as summarized in the table below. The final valuation of net assets is expected to be
completed as soon as possible, but no later than one year from the acquisition date.

(In thousands):

Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 1,478
600
26,500
16,633

Total assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$45,211
(300)

Net assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$44,911

The amount allocated to acquired inventories above replacement cost was $0.8 million. Accordingly, the results
of operations for the year ended December 31, 2007 include an incremental charge of $0.8 million in cost of
sales.

The $26.5 million of other intangible assets included $16.1 million of customer relationships (12-year economic
consumption life), $10.0 million of developed technologies (12-year economic consumption life), and $0.4
million of employment and non-competition agreements (2.4-year average economic consumption life). These
intangible assets were valued at fair value as determined by the Company with the assistance of an independent
valuation specialist.

The goodwill recorded in connection with the acquisition will not be amortized, but is deductible for tax
purposes. The goodwill is expected to be realized through the benefits of cost-saving synergies associated with
the leveraging of the Company’s manufacturing and administrative functions as well as the enhancement of sales
and marketing efforts through the Company’s global sales and distribution network and product offerings.

Acquisition of Mykrolis Corporation

On August 6, 2005, Entegris merged with Mykrolis Corporation (Mykrolis) in a transaction accounted for as an
acquisition for a purchase price of approximately $645.0 million, which included Entegris common stock and
vested share awards, as well as transaction costs.

Mykrolis was a worldwide developer, manufacturer and supplier of liquid and gas delivery systems, components
and consumables used to precisely measure, deliver, control and purify the process liquids, gases and chemicals
that are used in the semiconductor manufacturing process. Its products were also used to manufacture a range of
other products, such as flat panel displays, high-purity chemicals, photoresists, solar cells, gas lasers, optical and

F-14

magnetic storage devices and fiber optic cables. Mykrolis sold its products worldwide through a direct sales force
and through distributors in selected regions. The acquisition was made to expand the Company’s global network,
expand its product offering base and enhance the leverage of its manufacturing and administrative functions.

The fair value of Entegris equity securities was derived using an average market price per share of Entegris
common stock of $9.94, which was based on Entegris’ average stock price for the period two days before
through two days after the terms of the acquisition were agreed to and announced on March 21, 2005, net of
registration costs associated with the issued securities. Under the terms of the merger agreement, each
outstanding share of Mykrolis common stock was exchanged for 1.39 shares of Entegris common stock in a
tax-free transaction. Accordingly, no amount of goodwill is expected to be deductible for tax purposes.

The acquisition was accounted for as a purchase business combination. Under the purchase method of
accounting, the assets acquired and liabilities assumed from Mykrolis are recorded at the date of acquisition, at
their respective fair values. The consolidated financial statements and reported results of operations of Entegris
issued after completion of the acquisition reflect these values. The Company’s consolidated financial statements
include the net assets and results of operations from August 6, 2005, the date of acquisition.

The following table summarizes the components of the purchase price:

(In thousands, except per share data)

Common stock
Mykrolis common stock outstanding as of August 6, 2005 . . . . . . . . . . . . . . .
Exchange ratio . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Entegris common stock issued . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Value of Entegris’ common stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Stock options
Value of Entegris stock options issued in exchange for Mykrolis stock

options as of August 6, 2005(1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other transaction costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total estimated purchase price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conversion
Calculation

Fair Value

43,730
1.39

60,785
9.94

$

$604,202

33,407
7,389

$644,998

(1) Estimated fair value of 8,790 Entegris stock options (in thousands) issued as of August 6, 2005 in exchange
for 6,323 Mykrolis outstanding stock options (in thousands), calculated using the Black-Scholes option
pricing model, modified for dividends, with model assumptions estimated as of March 21, 2005 and an
Entegris stock price of $9.94.

F-15

Allocation of Purchase Price

The above purchase price has been allocated based on the fair values of assets acquired and liabilities assumed.

(In thousands)

Book value of net assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less existing goodwill and other intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$283,137
51,134

Book value of tangible net assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

232,003

Remaining allocation:

Increase inventories to fair value(a)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Decrease property, plant and equipment to fair value(b) . . . . . . . . . . . . . . . . . . . . . . . . .
Record identifiable intangible assets(c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increase benefit plan liabilities to fair value(d) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Decrease net assets to be sold to fair value(b)(e)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increase other net assets to fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments of tax-related assets and liabilities(f) . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Goodwill(g)

23,783
(10,273)
75,800
(1,059)
(22,756)
1,938
25,366
320,196

Purchase price . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$644,998

Since the Company’s initial allocation of the purchase price in August 2005, the significant revisions to the
Company’s estimates related primarily to net assets to be sold ($5.9 million decrease) and tax adjustments ($2.7
million increase).

The following table summarizes the allocation of the Mykrolis purchase price to the fair values of the assets
acquired and liabilities assumed (In thousands):

Cash, cash equivalents and short-term investments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accounts receivable, inventories and other current assets . . . . . . . . . . . . . . . . . . . . . . . . . . .
Property, plant and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Goodwill . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$120,525
125,325
31,247
75,800
320,196
55,628

Total assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

728,721

Current liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total liabilities assumed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(74,578)
(13,287)

(87,865)

Deferred compensation—Unvested options and restricted stock awards . . . . . . . . . . . . . . .

4,142

Net assets acquired . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$644,998

(a) The fair value of acquired inventories, developed in consultation with independent valuation

specialists, was determined as follows:

•

Finished goods—the estimated selling price less the cost of disposal and reasonable profit for
the selling effort.

• Work in process—the estimated selling price of finished goods less the cost to complete, cost

of disposal and reasonable profit on the selling and remaining manufacturing efforts.

• Raw materials—estimated current replacement cost, which equaled Mykrolis’ historical cost.

F-16

The increase in inventories to record the fair values of finished goods and work in process were as follows:

(In thousands)

Finished goods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Work in process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$17,401
6,382

Total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$23,783

(b) The fair value of acquired property, plant and equipment, developed in consultation with independent

valuation specialists, was valued at its value-in-use, unless there was a known plan to dispose of an
asset. Assets to be disposed of were valued at prevailing market rates, less costs to sell.

(c) The Company worked with independent valuation specialists to determine the fair value of identifiable

intangible assets, which were as follows:

(In thousands of dollars)

Developed technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trademarks and trade names . . . . . . . . . . . . . . . . . . . . . . . . .
Customer relationships and other . . . . . . . . . . . . . . . . . . . . . .

Fair value

$38,500
9,000
28,300

Useful life in
years

Weighted
average life in
years

3–6
3–8
9

4.6
4.9
9.0

Total

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$75,800

The total weighted average life of identifiable intangible assets acquired from Mykrolis that are subject

to amortization is 6.25 years.

Developed technology represents the technical processes, intellectual property, and institutional
understanding that were acquired from Mykrolis with respect to products, compounds and/or processes for
which development had been completed.

The fair value of identifiable intangible assets was determined using the “income approach” on a
project-by-project basis. This method starts with a forecast of expected future net cash flows. These net cash
flow projections do not anticipate any revenue or cost synergies. These cash flows are then adjusted to
present value by applying an appropriate discount rate that reflects the risk factors associated with the cash
flow streams, some of which are more certain than others.

The valuations were based on the information that was available as of the acquisition date and the
expectations and assumptions that have been deemed reasonable by the Company’s management. No
assurance can be given, however, that the underlying assumptions or events associated with such assets will
occur as projected. For these reasons, among others, the actual results may vary from the projected results.

(d) The increase to fair value for acquired benefit plans was $1.1 million for pension benefit obligations.
The fair value of the pension obligations, determined in consultation with independent actuarial
specialists, includes assumptions relating to economic factors such as interest rates of high quality
fixed income investments, demographic factors such as salary growth projections and other data, such
as expected employee terminations. The underlying assets of the plans were measured using market
rates as of the acquisition date.

(e) The decrease for net assets to be sold is based on fair value less cost to sell at disposal. On

September 12, 2005 the Company announced that it would divest the gas delivery (GD) product line
included in the Mykrolis acquisition. The assessment and formulation of a plan to exit the GD business
began in the period leading up to the date of consummation. This divestiture was completed in

F-17

February 2006. The GD product line includes mass flow controllers, pressure controllers and vacuum
gauges that are used by customers in manufacturing operations to measure and control process gas flow
rates and to control and monitor pressure and vacuum levels during the manufacturing process. As part
of the purchase accounting allocation for Mykrolis, the $13.1 million fair value of the assets of the GD
business was classified as an asset held for sale.

(f) Gives effect to the estimated tax effects of the acquisition.

(g)

In accordance with the requirements of SFAS No. 142, Goodwill and Other Intangible Assets (SFAS
No.142), the goodwill associated with the merger will not be amortized. None of the goodwill is
deductible for tax purposes. The goodwill recorded in connection with the acquisition is expected to be
realized through the benefits of cost-saving synergies associated with the leveraging of the Company’s
manufacturing and administrative functions as well as the enhancement of sales and marketing through
the company’s expanded global network and product offerings.

Pro Forma Results

The following unaudited pro forma financial information presents the combined results of operations of the
Company as if the acquisition of Mykrolis had occurred as of the beginning of the years presented. The unaudited
pro forma financial information is not necessarily indicative of what the Company’s consolidated results of
operations actually would have been had the acquisition occurred at the beginning of each year. In addition, the
unaudited pro forma financial information does not attempt to project the future results of operations of the
combined company.

(In thousands of dollars, except per share data) (Unaudited)

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income from continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Per share amounts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Income from continuing operations per common share-basic . . . . . . . . .
Net income per common share—basic . . . . . . . . . . . . . . . . . . . . . . . . . .
Income from continuing operations per common share-diluted . . . . . . .
Net income per common share—diluted . . . . . . . . . . . . . . . . . . . . . . . . .

Year ended
August 27,
2005

$602,204
42,393
29,171

Year ended
August 28,
2004

$528,073
45,709
34,499

0.31
0.22
0.30
0.21

0.37
0.27
0.35
0.26

The unaudited pro forma financial information above gives effect to the following:

a.

b.

c.

d.

The elimination of transactions between Entegris and Mykrolis, which upon completion of the merger
would be considered intercompany. This reflects the elimination of inter-company sales and associated
intercompany profit.

Incremental amortization and depreciation expense of approximately $6.6 million and $7.3 million in
2005 and 2004, respectively, related to the estimated fair value of identifiable intangible assets and
property, plant and equipment from the purchase price allocation. Identifiable intangible assets are
being amortized over their estimated useful lives over a range of 3 to 9 years and property, plant and
equipment is being depreciated over the estimated useful lives of the underlying assets.

The pro forma data includes the results of operations for Entegris, Inc. for the twelve months ended
August 27, 2005 and August 28, 2004 for 2005 and 2004, respectively, while the results of operations
for Mykrolis are included for the twelve-month periods ended July 2, 2005 and July 3, 2004,
respectively.

The above pro forma results have been reclassified to segregate the operating results of discontinued
operations.

F-18

The unaudited pro forma financial information above for the year ended August 28, 2004 excludes the purchase
accounting impact of the incremental charge of $23.8 million reported in cost of sales for the sale of acquired
inventory that was written up to fair value.

Divestitures and Discontinued Operations

In June 2007, the Company announced its intent to divest its cleaning equipment business. This divestiture is
expected to be completed no later than June 2008. The cleaning equipment business sells precision cleaning
systems to semiconductor and hard disk drive customers for use in their manufacturing operations. In conjunction
with the establishment of management’s plan to sell the cleaning equipment business, the fair value of the assets
of that business was tested for impairment and, where applicable, adjusted to fair value less costs to sell. During
2007 the Company determined that long-lived assets of $2.6 million were impaired and accordingly recorded a
pretax charge to “Impairment loss on assets of discontinued operations.” The assets and liabilities of the cleaning
equipment business have been classified as “Assets of discontinued operations and assets held for sale” and
“Liabilities of discontinued operations” in the accompanying consolidated balance sheets.

On September 12, 2005, the Company announced that it would divest its gas delivery, life science and tape and
reel product lines. The gas delivery products included mass flow controllers, pressure controllers and vacuum
gauges that are used by customers in manufacturing operations to measure and control process gas flow rates and
to control and monitor pressure and vacuum levels during the semiconductor manufacturing process. The life
sciences products included stainless steel clean in place systems for life sciences applications. Tape and reel
products included the Stream™ product line, which is a packaging system designed to protect and transport
microelectronic components, while enabling the high-speed automated placement of the components onto printed
circuit boards used for electronics.

The assets and liabilities of the life sciences product line and the assets of the tape and reel product line were sold
in December 2005 for net proceeds of $0.8 million and $1.0 million, respectively. The Company closed the sale
of the gas delivery assets in February 2006. After adjustments for severance, sublease payments and other closing
costs, the net proceeds of the sale totaled $13.1 million. As part of the purchase accounting allocation of the
acquisition of Mykrolis, the fair value of the assets of the gas delivery product line were classified as assets held
for sale as of the date of the August 6, 2005 acquisition. Accordingly, the Company adjusted its purchase price
allocation related to the assets of the gas delivery product line and did not recognize a gain or loss from the sale.

The consolidated financial statements have been reclassified to segregate as discontinued operations the assets
and liabilities, and operating results of, the product lines divested for all periods presented. The summary of
operating results from discontinued operations is as follows:

(In thousands)

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 4,891

$ 9,227

$ 18,125

$19,754

Loss from discontinued operations, before

income taxes . . . . . . . . . . . . . . . . . . . . . .
Income tax benefit . . . . . . . . . . . . . . . . . . . .

(Loss) income from discontinued

$(3,996)
1,999

$(1,906)
2,221

$(10,387)
1,852

$ (5,639)
2,126

operations, net of taxes . . . . . . . . . . . . . .

$(1,997)

$

315

$ (8,535)

$ (3,513)

F-19

Net assets of discontinued operations at December 31, 2007 and 2006 consisted of the following:

(In thousands)

December 31,
2007

December 31,
2006

Accounts receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assets held for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total assets of discontinued operations and assets held for sale . . . . . . . .
Total liabilities associated with discontinued operations and assets held

$ 276
3,029
882

4,187

for sale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4,225

Net assets (liabilities) of discontinued operations . . . . . . . . . . . . . . . . . . .

$ (38)

$1,564
353
5,986

7,903

842

$7,061

No interest expense was allocated to the operating results of discontinued operations. The after-tax earnings of
discontinued operations in the year ended December 31, 2006 included a tax benefit of $1.6 million associated
with a decrease in the Company’s deferred tax asset valuation allowance resulting from the resolution of a matter
with respect to the characterization of certain gains and losses.

Assets of discontinued operations and other assets held for sale shown in the consolidated balance sheet as of
December 31, 2007 include the net assets of the cleaning equipment business carried at $4.2 million. Assets of
discontinued operations and other assets held for sale shown in the consolidated balance sheet as of
December 31, 2006 include the net assets of the cleaning equipment business carried at $5.7 million and a
building located in Germany unrelated to the cleaning equipment business held for sale carried at $2.2 million.
This building was sold in 2007 for proceeds of $1.9 million.

(3) ACCOUNTS RECEIVABLE

Accounts receivable and notes receivable from customers at December 31, 2007 and 2006 consist of the
following:

(In thousands)

2007

2006

Accounts receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Notes receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 99,236
13,316

$112,451
15,767

Less allowance for doubtful accounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

112,552
499

128,218
822

$112,053

$127,396

(4) INVENTORIES

Inventories at December 31, 2007 and 2006 consist of the following:

(In thousands)

Raw materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Work-in-process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Finished goods(a)
Supplies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2007

2006

$21,237
3,496
47,455
932

$30,679
4,019
58,032
696

$73,120

$93,426

(a)

Includes consignment inventories held by customers for $6,428 and $6,102 at December 31, 2007 and 2006
respectively.

F-20

(5) PROPERTY, PLANT AND EQUIPMENT

Property, plant, and equipment at December 31, 2007 and 2006 consist of the following:

(In thousands)

2007

2006

Estimated useful
lives in years

Land . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buildings and improvements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manufacturing equipment
Molds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Office furniture and equipment

$ 10,826
72,001
100,319
85,669
63,611

$

9,924
70,225
94,722
78,673
55,695

5-35
5-10
3-5
3-8

Less accumulated depreciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

332,426
211,269

309,239
188,252

$121,157

$120,987

Depreciation expense for the fiscal years ended December 31, 2007 and 2006, four months ended December 31,
2005, and fiscal year ended August 27, 2005 was $24.9 million, $25.3 million, $7.8 million, and $18.5 million,
respectively. The Company recorded asset impairment write-offs on molds and equipment due to abandonment
of approximately $4.1 million, $1.5 million, $3.0 million, and $3.3 million for the fiscal years ended
December 31, 2007 and 2006, four months ended December 31, 2005, and fiscal year ended August 27, 2005,
respectively. In the four months ended December 31, 2005, $0.5 million of the impairments are included in
selling, general and administrative expenses; all other impairment losses are included in cost of sales.

(6) INVESTMENTS

Equity Investments

At December 31, 2007 and 2006, the Company held equity investments totaling $13.9 million and $7.7 million,
respectively. These investments all represent interests in privately-held companies. Investments representing
$10.1 million of the total at December 31, 2007 are accounted for under equity method of accounting, with the
remaining $3.8 million accounted for under the cost method.

During 2007, the Company recorded other income of $6.1 million on the sale of the Company’s interest in a
privately held equity investment accounted for using the cost method with a carrying value of $0.5 million.
Proceeds from the sale totaled $6.6 million.

On August 16, 2004, Nortem N.V. (formerly Metron Technology N.V.), a publicly traded security in which the
Company held an equity interest, announced that it had entered into an agreement with Applied Materials, Inc.
(Applied), pursuant to which Applied would acquire the business assets of Nortem. On December 14, 2004, upon
completion of the sale to Applied of substantially all of its assets and the outstanding shares of Nortem’s
worldwide operating subsidiaries, Nortem entered into liquidation.

Subsequently, Nortem paid two liquidation distributions to shareholders of record in the amount of $4.77 per
Nortem share for each of the remaining 1.1 million shares owned by the Company. Accordingly, based on the
Company’s carrying value of $2.1 million, $2.00 per share, and the $5.0 million cash distribution, the Company
recorded a pre-tax gain of $2.9 million that was reflected as other income in the year ended August 27, 2005.

In addition, as a result of the liquidation activities of Nortem, Nortem ceased to be an affiliate of the Company as
of February 2005. Since that date the Company no longer classifies its trade receivable due from Nortem
separately in its consolidated balance sheet, nor have sales after that date been categorized as sales to affiliates.
Sales to Nortem under previous distribution agreements classified as sales to affiliates were $14.7 million in the
year ended August 27, 2005.

F-21

Short-term Investments

Short-term investments at December 31, 2006 consist of the following:

(In thousands)

Variable rate demand notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Auction rate securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corporate debt securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2006

$ 16,825
78,550
24,793

$120,168

The amortized cost, gross unrealized losses and fair value of the Company’s short-term investments at
December 31, 2006 are as follows:

(In thousands)

2006

Amortized cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross unrealized losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$120,170
(2)

Fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$120,168

The contractual maturities of the Company’s short-term investments at December 31, 2006 are as follows:

(In thousands)

2006

Within one year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$120,168

Fair value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$120,168

Realized gains and losses were not material for the fiscal years ended December 31, 2007 and 2006, the four
months ended December 31, 2005, and the fiscal year ended August 27, 2005.

(7) INTANGIBLE ASSETS

The changes in the carrying amount of goodwill for the years ended December 31, 2007 and 2006 are as follows:

(In thousands)

Beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acquisition of specialty coatings business . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Adjustments to Mykrolis purchase price allocation . . . . . . . . . . . . . . . . . . . . .
Impairment of goodwill associated with assets held for sale . . . . . . . . . . . . . .
Other, including foreign currency translation . . . . . . . . . . . . . . . . . . . . . . . . . .

2007

2006

$394,531
16,633
(6,981)
(408)
(1,650)

$404,300
—
(9,499)
—
(270)

End of year

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$402,125

$394,531

As of December 31, 2007, goodwill amounted to approximately $402.1 million, an increase of $7.6 million from
the balance at December 31, 2006. The increase relates primarily to a business acquisition completed in August
2007 as described in Note 2. The increase was partially offset by the allocation of goodwill to the discontinued
cleaning equipment business also described in Note 2, foreign currency translation and changes associated with
various tax-related purchase price adjustments related to the Mykrolis acquisition completed in August 2005.

F-22

Other intangible assets, excluding goodwill, at December 31, 2007 and 2006 were as follows:

(In thousands)

Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpatented technology . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Developed technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trademarks and trade names . . . . . . . . . . . . . . . . . . . . . . . .
Customer relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Employment and noncompete agreements . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(In thousands)

Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpatented technology . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Developed technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Trademarks and trade names . . . . . . . . . . . . . . . . . . . . . . . .
Customer relationships . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Employment and noncompete agreements . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2007

Gross carrying
amount

Accumulated
amortization

Net carrying
value

Weighted
average life
in years

$ 17,855
7,988
48,500
9,000
44,100
3,407
4,203

$135,053

$13,323
5,260
20,943
5,513
7,888
2,893
2,863

$58,683

$ 4,532
2,728
27,557
3,487
36,212
514
1,340

$76,370

9.1
10.0
6.1
4.9
10.2
4.7
5.6

7.9

2006

Gross carrying
amount

Accumulated
amortization

Net carrying
value

Weighted
average life
in years

$ 17,835
8,139
38,500
9,000
28,000
3,968
4,349

$109,791

$11,228
4,542
12,020
3,212
4,303
3,439
2,170

$40,914

$ 6,607
3,597
26,480
5,788
23,697
529
2,179

$68,877

9.1
10.0
4.6
4.9
9.1
5.3
5.8

7.0

Amortization expense was $18.9 million, $17.6 million, $6.0 million, and $5.1 million in the fiscal years ended
December 31, 2007 and 2006, the four months ended December 31, 2005 and the fiscal year ended August 27,
2005, respectively.

Estimated amortization expense for the fiscal years 2008 to 2012, and thereafter, is $16.9 million, $14.4 million,
$9.1 million, $5.5 million, $4.7 million, and $25.8 million, respectively.

(8) ACCRUED LIABILITIES

Accrued liabilities at December 31, 2007 and 2006 consist of the following:

(In thousands)

2007

2006

Payroll and related benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Employee benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taxes, other than income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Royalties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Warranty and related . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$29,915
4,664
3,135
1,568
1,692
1,306
15,379

$34,063
6,150
1,005
582
25
1,824
12,830

$57,659

$56,479

F-23

(9) WARRANTY

The Company accrues for warranty costs based on historical trends and the expected material and labor costs to
provide warranty services. The majority of products sold are generally covered by a warranty for periods ranging
from 90 days to one year. The following table summarizes the activity related to the product warranty liability
during the fiscal years ended December 31, 2007 and 2006, the four months ended December 31, 2005, and the
fiscal year ended August 27, 2005:

(In thousands)

Year ended
December 31,
2007

Year ended
December 31,
2006

Beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accrual for warranties issued during the period . . . . . . . . .
Adjustment of previously recorded accruals . . . . . . . . . . . .
Assumption of liability in connection with acquisition . . . .
Settlements during the period . . . . . . . . . . . . . . . . . . . . . . .

$ 1,824
1,742
(1,170)
—
(1,090)

End of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 1,306

$ 1,795
2,042
(21)
—
(1,992)

$ 1,824

Four months
ended
December 31,
2005

$ 2,072
831
—
—
(1,108)

Year ended
August 27,
2005

$ 1,829
1,834
(730)
694
(1,555)

$ 1,795

$ 2,072

(10) FINANCING ARRANGEMENTS

Short-term borrowings at December 31, 2007 and 2006 consist of the following:

(In thousands)

2007

2006

Bank borrowings, denominated in Japanese yen with an average interest rate of

1.28% . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$17,802

Total short-term borrowings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$17,802

$—

$—

Long-term debt at December 31, 2007 and 2006 consists of the following:

(In thousands)

Bank loan denominated in Japanese yen with interest of 1.43% through 2010 . . .
Stock redemption notes payable with interest of 8% through December 2010 . . .
Small Business Administration loans with interest ranging from 5.5% to 7.35%

and various maturities through July 2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total long-term debt
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Less current maturities of long-term debt . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2007

2006

$26,702
1,223

$ —

1,609

1,758

29,683
9,310

1,787

3,396
401

Long-term debt less current maturities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$20,373

$2,995

Annual maturities of long-term debt as of December 31, 2007, are as follows:

Fiscal year ending

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(In thousands)

$ 9,310
9,327
11,046
—
—
—

$29,683

F-24

During the second quarter of 2007, the Company executed an unsecured domestic credit agreement, which
expires in June 2010 and allows for aggregate borrowings of up to $85 million with interest at LIBOR rates plus
an incremental factor ranging from 0.75% to 1.25% based on the current funded debt to EBITDA ratio (as
defined therein). Under the credit agreement, which includes a $60 million revolver and a $25 million one-year
term note, the Company is prohibited from paying cash dividends. The Company is also subject to, and is in
compliance with, certain financial covenants including a leverage ratio of funded debt to EBITDA (as defined
therein) of not more than 3.00 to 1.00. In addition, the Company must maintain consolidated aggregate amounts
of cash and cash equivalents (which under the agreement may also include auction rate securities classified as
short-term investments) of not less than $50 million. The Company pays a 0.15% commitment fee on the unused
portion of the $60 million revolver. In June 2007, the Company drew down the $25 million term note facility and
subsequently paid the note down completely in December 2007. Under the terms of the agreement, the $25
million term note facility is no longer available. As of December 31, 2007, the remaining revolver facility of $60
million under the credit agreement was available with no borrowings outstanding. There were no borrowings at
December 31, 2006 under the Company’s previous unsecured revolving credit agreement.

As described in Note 21, the Company executed a new domestic credit agreement in February 2008, which
expires in February 2013, with a total borrowing capacity of $230 million.

During the fourth quarter of 2007, the Company executed a 3.0 billion yen ($26.7 million) unsecured term note
agreement with a Japanese bank. Under the note agreement, the Company will make semi-annual payments in
May and November each year of 500 million yen ($4.7 million) through November 2010, along with interest at a
rate of 1.43%.

The Company has entered into unsecured line of credit agreements, which expire at various dates, with three
international commercial banks, which provide for aggregate borrowings of 10.5 million Malaysia ringgits and 2
billion Japanese yen for its foreign subsidiaries, which is equivalent to $21.0 million as of December 31, 2007.
Interest rates for these facilities are based on a factor of the banks’ reference rates. Borrowings outstanding under
international line of credit agreements at December 31, 2007 and December 31, 2006, were $17.8 million and
none, respectively.

(11) LEASE COMMITMENTS

As of December 31, 2007, the Company was obligated under noncancellable operating lease agreements for
certain sales offices and manufacturing facilities, manufacturing equipment, vehicles, information technology
equipment and warehouse space. Future minimum lease payments for noncancellable operating leases with initial
or remaining terms in excess of one year are as follows:

Fiscal year ending December 31

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thereafter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Total minimum lease payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(In thousands)

$ 9,576
6,353
5,517
2,873
2,598
3,241

$30,158

Total rental expense for all equipment and building operating leases for the fiscal years ended December 31,
2007 and 2006, the four months ended December 31, 2005 and the fiscal year ended August 27, 2005 were $14.0
million, $13.7 million, $3.7 million, and $5.5 million, respectively.

F-25

(12) RESTRUCTURING COSTS

Gilroy Cleaning Service Facility

In November 2007, the Company announced that during 2007 it would close its cleaning service facility in
Gilroy, California and relocate certain equipment to other existing manufacturing plants located in Asia, Europe,
and the United States. In connection with this action, the Company recorded estimated charges of $3.8 million
for employee severance and retention costs (generally over the employees’ required remaining term of service)
and asset impairment and accelerated depreciation.

Severance and retention costs, mainly classified as selling, general and administrative expense, totaled $0.7
million for the year ended December 31, 2007. Other costs of $3.1 million related to fixed asset write-offs and
accelerated depreciation, classified in cost of sales, were also recorded for the year ended December 31, 2007.

For the year ended December 31, 2007, the accrued liabilities, provisions and payments associated with the
employee severance and retention costs of the Gilroy restructuring activity were as follows:

(In thousands)

Year ended
December 31, 2007

Accrued liabilities at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accrued liabilities at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ —
709
—

$ 709

Singapore Regional Service Center

In August 2007, the Company announced that during 2007 it would close its regional service center located in
Singapore and relocate certain equipment to other existing manufacturing plants located in Asia. In connection
with this action, the Company recorded estimated charges of $0.3 million for employee severance and retention
costs that were primarily classified as selling, general and administrative expense for the year ended
December 31, 2007.

For the year ended December 31, 2007, the accrued liabilities, provisions and payments associated with the
employee severance and retention costs of the Singapore restructuring activity were as follows:

(In thousands)

Year ended
December 31, 2007

Accrued liabilities at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Payments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accrued liabilities at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ —
343
(148)

$ 195

Bad Rappenau Facility

In November 2005, the Company announced that during 2006 it would close its manufacturing plant located in
Bad Rappenau, Germany and relocate the production of products made in that facility to other existing
manufacturing plants located in the United States and Asia. In addition, the Company moved its Bad Rappenau
administrative center to Dresden, Germany. In connection with these actions, the Company incurred charges of
$7.5 million for employee severance and retention costs (generally over the employees’ required remaining term
of service) and asset impairment and accelerated depreciation.

Severance and retention costs, mainly classified as selling, general and administrative expense, totaled $(0.2)
million, $4.4 million and $0.6 million for the years ended December 31, 2007 and 2006 and four months ended

F-26

December 31, 2005, respectively. Other costs of $0.4 million, $1.2 million and $1.1 million, related to fixed asset
write-offs and accelerated depreciation classified in cost of sales, were also recorded for the years ended
December 31, 2007 and 2006 and four months ended December 31, 2005, respectively.

The Company’s facility in Bad Rappenau became available for sale during the third quarter of 2006 and was
classified in assets held for sale as of December 31, 2006 at a carrying value of $2.2 million. During the second
quarter of 2007, the Company sold the facility for $1.9 million.

For the years ended December 31, 2007 and 2006 and four months ended December 31, 2005, the accrued
liabilities, provisions and payments associated with the employee severance and retention costs of the Bad
Rappenau restructuring activity were as follows:

(In thousands)

Accrued liabilities at beginning of

period . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provision (reversal) . . . . . . . . . . . . . . . . . . .
Payments . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accrued liabilities at end of period . . . . . . .

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

$ 641
(145)
(496)

$ —

$

568
4,368
(4,295)

$

641

$ —

576
(8)

$ 568

(13) INTEREST INCOME, NET

Interest income, net consists of the following:

(In thousands)

Interest income . . . . . . . .
Interest expense . . . . . . . .

Interest income, net . . . . .

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

$ 7,815
(2,570)

$ 5,245

$9,668
(463)

$9,205

$2,753
(313)

$2,440

$3,404
(866)

$2,538

(14) OTHER INCOME (EXPENSE), NET

Other income (expense), net consists of the following:

(In thousands)

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

Gain (loss) on foreign currency

remeasurement . . . . . . . . . . . .

$1,196

Gain on sale of equity

investments . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . .

Other, net

6,068
392

Other income (expense), net . . . .

$7,656

$ 794

—
864

$1,658

$ 401

—
(463)

$ (62)

$ (884)

2,914
85

$2,115

F-27

(15) INCOME TAXES

Income (loss) before income taxes was derived from the following sources:

(In thousands)

Domestic . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . . . . . .

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

$ 2,563
54,056

$56,619

$46,864
42,692

$89,556

$(24,842)
6,270

$(18,572)

$ 3,370
10,937

$14,307

Income tax (benefit) expense is summarized as follows:

(In thousands)

Current:

Federal . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . .

Deferred:

Federal . . . . . . . . . . . . . . . . . . . . . . .
State . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign . . . . . . . . . . . . . . . . . . . . . .

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

6,612
3,122
21,056

30,790

(18,974)
(72)
(1,388)

(20,434)

$

923
1,115
13,474

15,512

13,038
610
(2,224)

11,424

$ 10,356

$26,936

$ —
—
2,690

2,690

(8,495)
(2,023)
(885)

(11,403)

$ (8,713)

$ 2,678
402
2,852

5,932

(4,602)
(166)
(10)

(4,778)

$ 1,154

Income tax (benefit) expense differs from the expected amounts based upon the statutory federal tax rates as
follows:

(In thousands)

Expected federal income tax at statutory
rate . . . . . . . . . . . . . . . . . . . . . . . . . . . .

State income taxes, net of federal tax

effect . . . . . . . . . . . . . . . . . . . . . . . . . .
Effect of foreign source income . . . . . . .
Tax benefits on exempt earnings from

export sales . . . . . . . . . . . . . . . . . . . . .
Equity compensation . . . . . . . . . . . . . . . .
Non-deductible executive

compensation . . . . . . . . . . . . . . . . . . .
Research tax credit
. . . . . . . . . . . . . . . . .
Tax-exempt interest . . . . . . . . . . . . . . . . .
Tax effect of foreign dividend . . . . . . . .
Tax contingencies . . . . . . . . . . . . . . . . . .
Other items, net . . . . . . . . . . . . . . . . . . . .

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

19,817

$31,344

(6,500)

$ 5,007

1,983
(2,637)

—
542

461
(300)
(135)
(11,175)
974
826

1,131
(4,671)

(1,683)
2

(850)
418

—
(325)
(905)
—
—
794

(250)
—

—
(100)
(295)
—
—
113

33
(986)

(900)
—

—
(300)
(676)
—
(1,375)
351

Income tax expense (benefit) . . . . .

$ 10,356

$26,936

$(8,713)

$ 1,154

In the year ended August 27, 2005, income tax expense was reduced by $1.4 million due to the favorable
resolution of U.S Federal income tax matters made by the Company.

F-28

As a result of commitments made by the Company related to investment in tangible property and equipment
(approximately $43 million by December 31, 2010), the establishment of a research and development center in
2006 and certain employment commitments through 2010, income from certain manufacturing activities in
Malaysia is exempt from tax for years up through 2015. The income tax benefits attributable to the tax status of
these subsidiaries are estimated to be $2.1 million (2 cents per diluted share), $2.8 million (2 cents per diluted
share), $0.2 million (zero cents per diluted share), and $1.0 million (1 cent per diluted share), for the years ended
December 31, 2007 and 2006, four months ended December 31, 2005 and year ended August 27, 2005.

$0.2 million, $2.8 million, $0.1 million, and $0.8 million was added to additional paid-in capital in accordance
with FAS No. 123(R) or APB No. 25 reflecting tax differences relating to employee stock option and restricted
stock award transactions for the years ended December 31, 2007 and 2006, four months ended December 31,
2005 and year ended August 27, 2005, respectively.

Goodwill was reduced by approximately $7.0 million in 2007 largely due to the determination that tax
contingencies established in connection with the Mykrolis acquisition were no longer necessary.

The tax effects of temporary differences that give rise to significant portions of the deferred tax assets and
deferred tax liabilities at December 31, 2007 and December 31, 2006 are as follows:

(In thousands)

Deferred tax assets attributable to:

Accounts receivable . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inventory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Intercompany profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accruals not currently deductible for tax purposes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net operating loss carryforwards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax credit carryforwards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Depreciation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equity compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Capital loss carryforward . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other, net . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Gross deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Valuation allowance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2007

2006

837
3,535
6,188
12,206
684
30,822
5,308
5,764
—
2,819

68,163
—

$

873
5,351
9,505
10,443
16,526
6,038
3,451
6,876
711
1,231

61,005
(711)

Total deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

68,163

60,294

Deferred tax liabilities attributable to:

Purchased intangible assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19,045

25,625

Total deferred tax liabilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

19,045

25,625

Net deferred tax assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

49,118

$34,669

On October 22, 2007, the Company’s Japanese subsidiary, Nihon Entegris KK (NEKK), acted to declare a
dividend of 6.8 billion yen (approximately U.S. $60 million) and to lend 4.6 billion yen (approximately U.S. $40
million) to the Company. These transactions were completed in early November of 2007. The dividend and loan
were funded from available cash and lines of credit established with Japanese banks. Prior to the declaration of
the dividend, the accumulated undistributed earnings of NEKK were considered to be reinvested indefinitely as
allowed by the provisions of Accounting Principles Board (APB) Opinion No. 23, Accounting for Income
Taxes—Special Areas, as amended by SFAS No. 109, such that no U.S. tax effect had been provided with respect
to such accumulated undistributed NEKK earnings. The dividend and loan transactions resulted in a
recharacterization of $100 million of NEKK’s accumulated undistributed earnings as no longer being indefinitely
reinvested. This recharacterization of the NEKK accumulated undistributed earnings resulted in a fourth quarter
U.S. tax benefit of approximately $9.4 million after reduction for state taxes of $1.9 million.

F-29

At December 31, 2007, there were approximately $95.7 million of accumulated undistributed earnings of
subsidiaries outside the United States that are considered to be reinvested indefinitely. Management has
considered its future cash needs and affirms its intention to indefinitely invest such earnings overseas to be
utilized for working capital purposes, expansion of existing operations, and possible acquisitions. No U.S. tax has
been provided on such earnings. If they were remitted to the Company, applicable U.S. federal and foreign
withholding taxes would be partially offset by available foreign tax credits.

At December 31, 2007, the Company had state operating loss carryforwards of approximately $0.4 million,
which begin to expire in 2011, foreign tax credit carryforwards of approximately $28.4 million which expire in
2018, alternative minimum tax credit carryforwards of approximately $0.1 million and research tax credit
carryforwards of approximately $2.3 million which begin to expire in 2021, and foreign operating loss
carryforwards of $0.3 million which do not expire under current law.

The Company established a valuation allowance of $2.2 million during the four months ended December 31,
2005 with respect to capital loss carryovers, of which $0.7 million and $1.6 million reversed in 2007 and 2006,
respectively.

No valuation allowance has been recorded in the year ending December 31, 2007 against the deferred tax assets
because management believes that it is more likely than not that the assets will be realized. This determination is
based largely upon management’s belief that sufficient earnings, both in the United States and offshore, will be
earned to realize the deferred tax assets. Included in the Company’s gross deferred tax assets is $28.4 million of
foreign tax credits which will expire within ten years and which require both foreign source and U.S. taxable
income to use the credits. Management believes that over the next ten years, the Company will be able to
generate $155 million and $125 million of U.S. taxable income and foreign source income, respectively, the
amounts necessary to recover those deferred tax assets.

The Company adopted the provisions of FASB Interpretation No. 48, “Accounting for Uncertainty in Income
Taxes, an Interpretation of FASB Statement 109,” effective January 1, 2007. Interpretation 48 prescribes a
recognition threshold and a measurement attribute for the financial statement recognition and measurement of a
tax position taken or expected to be taken in a tax return. Benefits from tax positions should be recognized in the
financial statements only when it is more likely than not that the tax positions will be sustained upon examination
by the appropriate taxing authority that would have full knowledge of all relevant information. A tax position that
meets the more-likely-than-not recognition threshold is measured at the largest amount of benefit that is greater
than fifty percent likely of being realized upon ultimate settlement. Tax positions that previously failed to meet
the more-likely-than-not recognition threshold should be recognized in the first subsequent financial reporting
period in which that threshold is met. Previously recognized tax positions that no longer meet the more-likely-
than-not recognition threshold should be derecognized in the first subsequent financial reporting period in which
that threshold is no longer met. Interpretation 48 also provides guidance on the accounting for and disclosure of
unrecognized tax benefits, interest and penalties.

A reconciliation of the beginning and ending balances of the total amounts of gross unrecognized tax benefits is
as follows (in thousands):

Gross unrecognized tax benefits at January 1, 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increases in tax positions for prior years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Decreases in tax positions for prior years . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Increases in tax positions for current year . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Settlements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lapse in statute of limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$11,679
8,775
(4,919)
1,485
(193)
(194)

Gross unrecognized tax benefits at December 31, 2007 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$16,633

The total amount of net unrecognized tax benefits that, if recognized, would affect the effective tax rate was $3.3
million at December 31, 2007.

F-30

The Company’s policy for recording interest and penalties associated with audits is to record such items as a
component of income before taxes. Penalties are recorded in “Other (gains) losses,” and interest paid or received
is recorded in interest expense or interest income, respectively, in the statement of income. For the year ended
December 31, 2007, the Company has accrued interest and penalties related to unrecognized tax benefits of $3.1
million. $0.5 million of interest and penalties were recognized in the statement of operations for the year ended
December 31, 2007.

The Company files income tax returns in the U.S. and in various state, local and foreign jurisdictions. The statute
of limitations related to the consolidated Federal income tax return is closed for all years up to and including
fiscal 2003. With respect to foreign jurisdictions, the statute of limitations varies from country to country with
the earliest open year for the Company’s major foreign subsidiaries being 2001. During 2007, German tax
authorities were auditing the Company’s German subsidiary. It is likely that a settlement will be reached with the
German authorities within twelve months.

Due to the potential for resolution of foreign examinations, the expiration of various statutes of limitation, the
filings for change in accounting methods and amended return filings, it is reasonably possible that the company’s
gross unrecognized tax benefits balance may change within the next twelve months by a range of zero to $2.7
million.

(16) SHAREHOLDERS’ EQUITY

Share Repurchase Program

On August 21, 2006, the Company's Board of Directors authorized a share repurchase program of up to $150
million over the succeeding 12 to 18 months. In connection with the share repurchase program the Company
entered into an Accelerated Share Repurchase Agreement (ASRA) and a Collared Accelerated Share Repurchase
Agreement (CASRA) with Goldman, Sachs & Co. (GS) on August 30, 2006. Under the ASRA, which was
effective as of August 30, 2006, the Company acquired 4.7 million shares of common stock on September 5,
2006 from GS for $50.0 million, which was paid on September 5, 2006. The transaction was accounted for as a
share retirement with common stock, paid-in capital and retained earnings reduced by $47 thousand, $28.2
million, and $21.7 million, respectively.

Under the CASRA, the Company paid $50.0 million for a prepaid forward contract, which was effective
August 30, 2006, to repurchase the Company’s common stock. The Company received deliveries of common
stock of 3.0 million shares and 1.2 million shares on September 5, 2006 and October 6, 2006, respectively. The
transaction was accounted for as a share retirement with common stock, paid-in capital and retained earnings
reduced by $42 thousand, $25.2 million, and $19.8 million, respectively. $5.0 million of the $50.0 million
payment was reflected as a prepaid forward contract for share repurchase in shareholders’ equity, which was
credited when the Company received additional shares under the CASRA.

The Company financed the ASRA and CASRA with its available cash equivalents and short-term investments.
Under the terms of the ASRA and the CASRA, GS repurchased an equivalent number of shares in the open
market from September 2006 through August 2007. Upon GS’s completion of trading in August 2007, the
Company's price under the ASRA was adjusted up based on the volume-weighted average price of the stock
repurchased by GS, resulting in a cash payment to GS of $0.6 million in 2007, leaving $49.4 million remaining
available for repurchases pursuant to the August 2006 authorization. Also in 2007, the Company received
0.4 million additional shares of common stock pursuant to the CASRA, based on the volume-weighted average
price of the stock repurchased by GS.

In May 2007, the Company’s Board of Directors authorized a self-tender offer program to acquire up to $250
million of the Company’s common stock. A modified “Dutch Auction” tender offer began on May 11, 2007 and

F-31

expired on June 8, 2007, and was subject to the terms and conditions described in the offering materials mailed to
the Company’s shareholders and filed with the Securities and Exchange Commission. The tender offer was
completed on June 14, 2007 with the Company purchasing 21.1 million shares of its common stock at a price of
$11.80 per share. The Company incurred $2.3 million in costs associated with the tender offer for a total cost of
approximately $251.4 million.

In November 2007, the Company’s Board of Directors authorized a Rule 10b-5-1 trading plan to acquire up to
$49.4 million of the Company’s common stock. The share buyback program, which commenced on December 1,
2007, was established in accordance with the provisions of Rule 10b5-1 and Rule 10b-18 under the Securities
Exchange Act of 1934. Under the trading plan, the Company purchased 0.5 million shares of its common stock at
an average price of $8.96 per share in 2007. The total cost of the purchases was $4.1 million.

Share-based Compensation Expense

Effective August 28, 2005, the Company adopted Statement of Financial Accounting Standards No. 123 (revised
2004), Share-Based Payment, (SFAS 123(R)) which requires the measurement and recognition of compensation
expense for all share-based payment awards made to employees and directors including employee stock options
and employee stock purchases related to the Employee Stock Purchase Plan (employee stock purchases) to be
based on estimated fair values. SFAS 123(R) supersedes the Company’s previous accounting under Accounting
Principles Board Opinion No. 25, Accounting for Stock Issued to Employees (APB 25). In March 2005, the
Securities and Exchange Commission issued Staff Accounting Bulletin No. 107 (SAB 107) relating to SFAS
123(R). The Company has applied the provisions of SAB 107 in its adoption of SFAS 123(R).

The Company adopted SFAS 123(R) using the modified prospective transition method, which required the
application of the accounting standard as of August 28, 2005. In accordance with the modified prospective
transition method, the Company’s Consolidated Financial Statements for prior periods were not restated to
reflect, and did not include, the impact of SFAS 123(R). Share-based compensation expense recorded under
SFAS 123(R) for the years ended December 31, 2007 and 2006 and four months ended December 31, 2005 was
$10.5 million, $14.8 million and $11.1 million, respectively. Share-based compensation expense of $5.5 million
for the year ended August 27, 2005 was mainly related to restricted stock grants that the Company had been
recognizing under previous accounting standards.

SFAS 123(R) requires companies to estimate the fair value of share-based payment awards on the date of grant
using an option-pricing model. The value of the portion of the award that is ultimately expected to vest is
recognized as expense over the requisite service periods in the Company’s Consolidated Statement of Operations.
Prior to the adoption of SFAS 123(R), the Company accounted for share-based awards to employees and
directors using the intrinsic value method in accordance with APB 25 as allowed under Statement of Financial
Accounting Standards No. 123, Accounting for Stock-Based Compensation (SFAS 123). Under the intrinsic value
method, no share-based compensation expense had been recognized in the Company’s Consolidated Statement of
Operations, other than as related to restricted stock grants, because the exercise price of the Company’s stock
options granted to employees and directors equaled the fair market value of the underlying stock at the date of
grant.

Share-based compensation expense recognized for periods after the adoption of SFAS 123(R) is based on the
value of the portion of share-based payment awards that is ultimately expected to vest during the period. Share-
based compensation expense recognized in the Company’s Consolidated Statement of Operations for the years
ended December 31, 2007 and 2006 and four months ended December 31, 2005 includes compensation expense
for share-based payment awards granted prior to, but not yet vested as of August 27, 2005 based on the grant date
fair value estimated in accordance with the pro forma provisions of SFAS 123.

Share-based payment awards in the form of restricted stock awards for 0.9 million shares and 1.1 million shares
were granted to employees during the years ended December 31, 2007 and 2006, respectively, with no shares
granted during the four months ended December 31, 2005. Share-based payment awards in the form of stock

F-32

awards subject to performance conditions for up to 0.9 million shares and 0.9 million shares were also granted to
certain employees during the years ended December 31, 2007 and 2006, respectively, with no performance
shares granted during the four months ended December 31, 2005. Compensation expense is based on the grant
date fair value estimated in accordance with the provisions of SFAS 123(R).

In conjunction with the adoption of SFAS 123(R), the Company changed its method of attributing the value of
share-based compensation to expense from the accelerated multiple-option approach to the straight-line single
option method. Compensation expense for all share-based payment awards granted on or prior to August 27,
2005 will continue to be recognized using the accelerated multiple-option approach, while compensation expense
for all share-based payment awards granted subsequent to August 27, 2005 will be recognized using the straight-
line single-option method. Because share-based compensation expense recognized in the Consolidated Statement
of Operations for the years ended December 31, 2007 and 2006 and four months ended December 31, 2005 is
based on awards ultimately expected to vest, it has been reduced for estimated forfeitures. SFAS 123(R) requires
forfeitures to be estimated at the time of grant and revised, if necessary, in subsequent periods if actual forfeitures
differ from those estimates. In the Company’s pro forma information required under SFAS 123 for the periods
through August 27, 2005, the Company accounted for forfeitures as they occurred.

There were stock option awards of 1.1 million shares in the year ended August 27, 2005. Restricted stock awards
of 1.9 million shares were made to employees in the year ended August 27, 2005. Prior to August 28, 2005, the
Company used the Black-Scholes option-pricing model (Black-Scholes model) for the Company’s pro forma
information required under SFAS 123. The Company’s determination of fair value of share-based payment
awards on the date of grant using an option-pricing model is affected by the Company’s stock price as well as
assumptions regarding a number of highly complex and subjective variables. These variables include, but are not
limited to, the Company’s expected stock price volatility over the term of the awards and actual and projected
employee stock option exercise behaviors and forfeitures.

On November 10, 2005, the Financial Accounting Standards Board (FASB) issued FASB Staff Position No. FAS
123(R)- 3, Transition Election Related to Accounting for Tax Effects of Share-Based Payment Awards (FSP
123(R)-3). An entity could take up to one year from the effective date of FSP 123(R)-3 to evaluate its available
transition alternatives and make its one-time election. The Company adopted the alternative transition method
provided in the FASB Staff Position for calculating the tax effects of share-based compensation pursuant to
SFAS 123(R). The alternative transition method includes simplified methods to establish the beginning balance
of the additional paid-in capital pool (APIC pool) related to the tax effects of employee share-based
compensation and to determine the subsequent impact on the APIC pool and consolidated statements of cash
flows of the tax effects of employee share-based compensation awards that are outstanding upon adoption of
SFAS 123(R).

Employee Stock Purchase Plan

The Company has the Entegris, Inc. Employee Stock Purchase Plan (ESPP). A total of 4.0 million common
shares are reserved for issuance under the ESPP. The ESPP allows employees to elect, at six-month intervals, to
contribute up to 10% of their compensation, subject to certain limitations, to purchase shares of common stock at
the lower of 85% of the fair market value on the first day or last day of each six-month period. The Company
treats the ESPP as a compensatory plan under SFAS 123(R). As of December 31, 2007, 1.3 million shares had
been issued under the ESPP. At December 31, 2007, 2.7 million shares remained available for issuance under the
ESPP. Employees purchased 0.2 million shares, 0.2 million shares, none, and 0.2 million shares, at a weighted-
average price of $8.63, $8.06, none, and $8.34 during the years ended December 31, 2007 and 2006, four months
ended December 31, 2005 and year ended August 27, 2005, respectively.

Employee Stock Option Plans

As of December 31, 2007, the Company had five stock incentive plans: the Entegris, Inc. 1999 Long-Term
Incentive and Stock Option Plan (the 1999 Plan), the Entegris, Inc. Outside Directors’ Option Plan (the

F-33

Directors’ Plan) and three former Mykrolis stock option plans assumed by the Company on August 10, 2005:
The 2001 Equity Incentive Plan (the 2001 Plan), the 2003 Employment Inducement and Acquisition Stock
Option Plan (the Employment Inducement Plan) and the 2001 Non-Employee Director Stock Option Plan (the
2001 Directors Plan). At present, the Company intends to issue new common shares upon the exercise of stock
options under each of these plans. The plans are described in more detail below.

1999 Plan: The 1999 Plan provides for the issuance of share-based awards to selected employees, directors, and
other persons (including both individuals and entities) who provide services to the Company or its affiliates.
Under the 1999 Plan, the Board of Directors determines the number of shares for which each option is granted,
the rate at which each option is exercisable and whether restrictions will be imposed on the shares subject to the
awards. The term of options issued under the 1999 Plan has been ten years, generally exercisable ratably in 25%
increments over the 48 months following grant, with exercise prices equal to 100% of the fair market value of the
Company’s common stock on the date of grant.

The Directors’ Plan and the 2001 Directors Plan: The Directors’ Plan provides for the grant to each outside
director of an option to purchase 15,000 shares on the date the individual becomes a director and for the annual
grant to each outside director, at the choice of the Directors’ Plan administrator (defined as the Board of
Directors or a committee of the Board), of either an option to purchase 9,000 shares, or a restricted stock award
of up to 3,000 shares. Options are exercisable six months subsequent to the date of grant. Under the Directors’
Plan, the term of options shall be ten years and the exercise price for shares shall not be less than 100% of the fair
market value of the common stock on the date of grant of such option. The 2001 Directors Plan provides for the
grant to each newly elected eligible director of options to purchase 15,000 shares of common stock on the date of
his or her first election and for the annual grant of options to purchase 10,000 shares of common stock for each
subsequent year of service as a director. The exercise price of the stock options may not be less than the fair
market value of the stock at the date of grant. On August 10, 2005 the Company's Board of Directors determined
that the equity compensation paid to non-employee directors would be an aggregate of 10,000 shares of restricted
stock per annum, inclusive of the amounts specified in the above described plans.

2001 Plan: The 2001 Plan provides for the issuance of share-based awards to selected employees, directors, and
other persons (including both individuals and entities) who provide services to the Company or its affiliates. The
2001 Plan has a term of ten years. Under the 2001 Plan, the Board of Directors determines the term of each
option, option price, number of shares for which each option is granted, whether restrictions will be imposed on
the shares subject to options, and the rate at which each option is exercisable. The exercise price for incentive
stock options may not be less than the fair market value per share of the underlying common stock on the date
granted (110% of fair market value in the case of holders of more than 10% of the voting stock of the Company).
The 2001 Plan contains an “evergreen” provision, which increases the number of shares in the pool of options
available for grant annually by 1% of the number of shares of common stock outstanding on the date of the
Annual Meeting of Stockholders or such lesser amount determined by the Board of Directors. Under NASDAQ
rules new grants and awards under the 2001 Plan may only be made to employees and directors of the Company
who were employees or directors of Mykrolis prior to the merger or who were hired by the Company subsequent
to the merger.

Employment Inducement Plan: The Employment Inducement Plan is a non-shareholder approved plan that
provides for the issuance of stock options and other share-based awards to newly-hired employees and to
employees of companies acquired by the Company. The Employment Inducement Plan has a term of ten years.
Options granted under the Employment Inducement Plan have a maximum term of ten years and an exercise
price equal to the fair market value of the Company’s common stock on the date of grant. The Board of Directors
determines other terms of option grants including, number of shares, restrictions and the vesting period. The
number of reserved shares under the Employment Inducement Plan automatically increases annually by 0.25% of
the number of shares of common stock outstanding on the date of the Annual Meeting of Stockholders unless
otherwise determined by the Board of Directors.

F-34

Millipore Plan

In addition to the Company’s plans, certain employees of the Company who were employees of Mykrolis were
granted stock options under a predecessor’s share-based compensation plan. The Millipore 1999 Stock Incentive
Plan (the Millipore Plan) provided for the issuance of stock options and restricted stock to key employees as
incentive compensation. The exercise price of a stock option was equal to the fair market value of Millipore’s
common stock on the date the option was granted and its term was generally ten years and vested over four years.
Options granted to the Company’s employees under the Millipore Plan in the past were converted into options to
acquire Mykrolis common stock pursuant to the spin-off of Mykrolis by Millipore, and then were converted into
options to acquire the Company’s common stock pursuant to the merger with Mykrolis.

General Option Information

Option activity for the 1999 Plan and the Directors’ Plan for the years ended December 31, 2007 and 2006, four
months ended December 31, 2005 and year ended August 27, 2005 is summarized as follows:

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

Weighted
average
exercise
price

Number of
shares

Weighted
average
exercise
price

Number of
shares

Weighted
average
exercise
price

Number of
shares

Weighted
average
exercise
price

Number of
shares

6,383
—
(2,627)
(251)

$ 7.76
—
6.01
12.10

8,501
—
(1,925)
(193)

$ 7.35
—
5.56
11.35

8,826
—
(231)
(94)

$ 7.30
—
4.23
10.43

8,268
1,125
(415)
(152)

$7.05
8.39
4.49
9.23

(Shares in thousands)

Options outstanding,

beginning of
period . . . . . . . . . . . .
Granted . . . . . . . .
Exercised . . . . . . .
Canceled . . . . . . .

Options outstanding,

end of period . . . . . .

3,505

$ 8.77

6,383

$ 7.76

8,501

$ 7.35

8,826

$7.30

Options exercisable,

end of period . . . . . .

3,505

$ 8.77

6,379

$ 7.76

7,109

$ 7.33

7,109

$7.29

Options outstanding for the 1999 Plan and the Directors’ Plan at December 31, 2007 are summarized as follows:

(Shares in thousands)

Options outstanding

Options exercisable

Range of exercise prices

$3.15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$4.22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$5.90 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$6.86 to $7.49 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$8.04 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$8.36 to $10.00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$10.35 to $11.99 . . . . . . . . . . . . . . . . . . . . . . . . . . . .
$12.01 to $15.38 . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Number
outstanding

Weighted
average
remaining life
in years

Weighted-
average
exercise
price

Number
exercisable

190
68
481
83
588
1,058
859
178

3,505

0.1 years
1.7 years
4.8 years
3.3 years
3.8 years
4.8 years
4.6 years
5.7 years

$ 3.15
4.22
5.90
7.47
8.04
8.78
11.59
13.61

190
68
481
83
588
1,058
859
178

3,505

Weighted
average
exercise
price

$ 3.15
4.22
5.90
7.47
8.04
8.78
11.59
13.61

The weighted average remaining contractual term for options outstanding and exercisable for the 1999 Plan and
the Directors’ Plan at December 31, 2007 was 4.3 years and 4.3 years, respectively.

F-35

Option activity for the 2001 Plan, the Employment Inducement Plan, the 2001 Directors Plan and the Millipore
plan for the years ended December 31, 2007 and 2006, four months ended December 31, 2005, and year ended
August 27, 2005 are summarized as follows:

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

Number
of
shares

Weighted
average
exercise
price

Number
of
shares

Weighted
average
exercise
price

Number
of
Shares

Weighted
average
exercise
price

Number
of
shares

Weighted
Average
Exercise
Price

(Shares in thousands)

Options outstanding,

beginning of period . . . . . . . .

6,422

$ 8.62

7,998

$ 8.53

8,599

$ 8.38

—

—

Options assumed in Mykrolis

acquisition . . . . . . . . . . . . . . .
Options exercised . . . . . . . . . . .
Options expired . . . . . . . . . . . . .

—
(1,345)
(186)

—
8.24
10.23

—
(1,102)
(474)

—
7.09
10.74

—
(508)
(93)

—
5.64
10.39

8,790
(177)
(14)

$ 8.33
5.37
10.74

Options outstanding,

end of period . . . . . . . . . . . . .

4,891

$ 8.67

6,422

$ 8.62

7,998

$ 8.53

8,599

$ 8.38

Options exercisable . . . . . . . . . .

4,723

$ 8.67

6,080

$ 8.63

7,553

$ 8.61

7,638

$ 8.47

Options outstanding for the 2001 Plan, Employment Inducement Plan, 2001 Directors Plan and Millipore Plan at
December 31, 2007 are summarized as follows:

(Shares in thousands)

Options outstanding

Options exercisable

Range of exercise prices

$3.83-$4.89 . . . . . . . . . . . . . . . . . . . . . . . . . . .
$5.01-$8.09 . . . . . . . . . . . . . . . . . . . . . . . . . . .
$8.35-$9.94 . . . . . . . . . . . . . . . . . . . . . . . . . . .
$10.09-$10.91 . . . . . . . . . . . . . . . . . . . . . . . . .
$11.12-$11.76 . . . . . . . . . . . . . . . . . . . . . . . . .

Number
outstanding

Weighted
average
remaining life
in years

Weighted
average
exercise price

Number
exercisable

Weighted-
average
exercise price

555
953
1,290
1,095
998

4,891

1.8
1.8
2.5
1.1
3.1

2.1

$ 4.77
6.19
8.49
10.77
11.13

$ 8.67

555
953
1,122
1,095
998

4,723

$ 4.77
6.19
8.50
10.77
11.13

$ 8.67

The weighted average remaining contractual term for options outstanding and exercisable for the 2000 Plan, the
Employment Inducement Plan, the 2001 Directors’ Plan and the Millipore Plan at December 31, 2007 was 2.1
years and 2.0 years, respectively.

For all plans, the Company had shares available for future grants of 8.9 million shares, 8.1 million shares,
7.2 million shares and 4.9 million shares at December 31, 2007, December 31, 2006, December 31, 2005 and
August 27, 2005, respectively.

For all plans, the total pretax intrinsic value of stock options exercised during the years ended December 31,
2007 and 2006 was $18.0 million and $14.2 million, respectively. The aggregate intrinsic value, which represents
the total pretax intrinsic value based on the Company’s closing stock price of $8.63 at December 31, 2007, which
theoretically could have been received by the option holders had all option holders exercised their options as of
that date, was $8.1 million for both options outstanding and options exercisable. The total number of
in-the-money options exercisable as of December 31, 2007 was 4.6 million.

F-36

During the years ended December 31, 2007 and 2006, and August 27, 2005, certain existing stock option grants
and restricted stock awards were modified in connection with the execution of various severance and separation
agreements. Under the agreements, the terms of unvested and vested stock option grants were modified with no
future service required by the affected individuals. Accordingly, under the measurement principles of SFAS
No. 123(R) and APB No. 25, incremental share-based compensation expense of $0.1 million, $0.4 million and
$1.0 million, respectively, was recognized for the value of the modified stock option grants at the date of the
agreements’ execution.

During the years ended December 31, 2007 and 2006, four months ended December 31, 2005 and year ended
August 27, 2005, the Company received cash from the exercise of stock options totaling $28.1 million, $18.5
million, $3.8 million, and $3.4 million, respectively. During the years ended December 31, 2007 and 2006, four
months ended December 31, 2005 and years ended August 27, 2005, the Company received cash of $1.8 million,
$1.5 million, none, and $1.5 million, respectively, in employee contributions to the Entegris, Inc. Employee
Stock Purchase Plan.

Restricted Stock Awards

Restricted stock awards are awards of common stock that are subject to restrictions on transfer and to a risk of
forfeiture if the awardee terminates employment with the Company prior to the lapse of the restrictions. The
value of such stock is determined using the market price on the grant date. Compensation expense is recorded
over the applicable restricted stock vesting periods. In conjunction with the adoption of SFAS 123(R), the
Company changed its method of attributing the value of share-based compensation to expense from the
accelerated multiple-option approach to the straight-line single option method. Accordingly, compensation
expense for restricted stock awards granted on or prior to August 27, 2005 are recorded using the accelerated
multiple-option approach, while compensation expense for restricted stock awards granted subsequent to
August 27, 2005 are recognized using the straight-line single-option method. A summary of the Company’s
restricted stock activity for the years ended December 31, 2007 and 2006, four months ended December 31, 2005
and year ended August 27, 2005 is presented in the following table:

(Shares in thousands)

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Year ended
August 27, 2005

Number
of
shares

Weighted
average
grant date
fair value

Number
of
shares

Weighted
average
grant date
fair value

Number
of
shares

Weighted
average
grant date
fair value

Number
of
shares

Weighted
average
grant date
fair value

Unvested, beginning of

period . . . . . . . . . . . . . . . . .
Granted . . . . . . . . . . . . . . . . .
Unvested shares assumed in

acquisition . . . . . . . . . . . . .
Vested . . . . . . . . . . . . . . . . . .
Forfeited . . . . . . . . . . . . . . . .

1,950
897

$10.71
11.09

1,526
1,131

$11.03
10.46

2,374
—

$11.05
—

236
1,900

$12.29
10.84

—
(801)
(173)

—
10.74
10.60

—
(631)
(76)

—
11.04
10.69

—
(843)
(5)

—
11.09
10.28

365
(103)
(24)

11.32
11.18
9.23

Unvested, end of period . . . .

1,873

$10.89

1,950

$10.71

1,526

$11.03

2,374

$11.05

The weighted average remaining contractual term for unvested restricted shares at December 31, 2007 and 2006
was 2.4 years and 2.5 years, respectively.

As of December 31, 2007, the total compensation cost related to nonvested stock options and restricted stock
awards not yet recognized was $0.3 million and $11.5 million, respectively, that is expected to be recognized
over the next 15.8 months on a weighted-average basis. These amounts exclude restricted stock awards for which
performance criteria have yet to be determined and, accordingly, grant dates for those awards have not been
established.

F-37

During the years ended December 31, 2007 and 2006, Entegris, Inc. awarded performance stock for up to
0.9 million shares for each year to be issued upon the achievement of performance conditions (Performance
Shares) under the Company’s stock incentive plans to certain officers and other key employees. The Performance
Shares will be earned if, and to the extent that, various financial performance criteria for fiscal years 2006
through 2009 are achieved. The number of performance shares earned in a given year may vary based on the
level of achievement of financial performance objectives for that year or multi-year period. If the Company’s
performance fails to achieve the specified performance threshold, then the Performance Shares allocated to that
financial performance criteria are forfeited. Each annual tranche will have its own service period beginning at the
date (the grant date) at which the Board of Directors establishes the annual performance targets for the applicable
year. Compensation expense to be recorded in connection with the Performance Shares will be based on the grant
date fair value of the Company’s common stock. Awards of Performance Shares are expensed over the service
period based on an evaluation of the probability of achieving the performance objectives.

For Performance Share awards granted in 2006, 25% of the shares are available to be awarded each year through
2009, if and to the extent the financial performance criteria for fiscal years 2006 through 2009 are achieved. The
number of Performance Shares earned in a given year may vary based on the level of achievement of financial
performance objectives for that year. If the Company’s performance for a year fails to achieve the specified
performance threshold, then the Performance Shares allocated to that year are forfeited. Each annual tranche will
have its own service period beginning at the date (the grant date) at which the Board of Directors establishes the
annual performance targets for the applicable year, or January 1 of that year, whichever occurs later.
Compensation expense to be recorded in connection with the Performance Shares is based on the grant date fair
value of the Company’s common stock on the date the financial performance criteria are established for each
annual tranche. Once earned, Performance Shares are fully vested with no restrictions. Awards of Performance
Shares are expensed over the service period based on an evaluation of the probability of achieving the
performance objectives.

For Performance Share awards granted in 2007, 50% of the shares are available to be awarded, if and to the
extent that two financial performance criteria for fiscal year 2007 are achieved, while the remaining 50% of the
shares are available to be awarded if and to the extent that a third financial performance criteria for the three-year
period including fiscal years 2007 through 2009 is achieved. The number of performance shares earned may vary
based on the level of achievement of financial performance criteria indicated. If the Company’s performance fails
to achieve the specified performance threshold, then the performance shares are forfeited. Compensation expense
to be recorded in connection with the 2007 Performance Shares is based on the grant date fair value of the
Company’s common stock on the date the financial performance criteria were established. All shares earned in
connection with the 2007 Performance Share awards are also subject to service conditions. Shares available upon
attainment of the financial performance criteria for fiscal year 2007 vest annually over a four-year period, while
shares available upon attainment of the financial performance criteria for the three-year period from fiscal years
2007 through 2009 will cliff-vest at the end of 2009, with the final 25% vesting in 2010.

Certain unvested restricted shares of Mykrolis common stock issued in connection with restricted stock awards
made prior to the merger with the Company were exchanged for unvested restricted shares of the Company’s
common stock, with the number of shares adjusted for the exchange ratio of 1.39. Accordingly, 0.3 million
restricted Mykrolis shares were exchanged for 0.4 million restricted shares of the Company’s common stock. The
intrinsic value of $2.5 million associated with the unvested restricted stock was recorded as deferred
compensation as part of the purchase price allocation for the Mykrolis acquisition. This balance is being charged
to earnings over the remaining vesting periods that extend to 2009.

F-38

Valuation and Expense Information under SFAS 123(R)

The following table summarizes share-based compensation expense related to employee stock options, restricted
stock awards and grants under the employee stock purchase plan under SFAS 123(R) for the years ended
December 31, 2007 and 2006 and four months ended December 31, 2005 that was allocated as follows:

(In thousands)

Year ended
December 31, 2007

Year ended
December 31, 2006

Four months ended
December 31, 2005

Cost of sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engineering, research and development . . . . . . . . . . . . . .
Selling, general and administrative . . . . . . . . . . . . . . . . . .

Share-based compensation expense . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tax benefit

$ 1,800
180
8,520

10,500
3,948

Share-based compensation expense, net of tax . . . . . . . . .

$ 6,552

$ 3,000
230
11,546

14,776
5,556

$ 9,220

$

882
95
10,076

11,053
4,156

$ 6,897

No stock option grants have been made to employees since the adoption of SFAS123(R). Prior to the adoption of
SFAS 123(R), the value of each employee stock option was estimated on the date of grant using the Black-
Scholes model for the purpose of the pro forma financial information in accordance with SFAS 123.

Pro Forma Information Under SFAS 123 for Periods Prior to Adoption of SFAS 123(R)

The following table illustrates the effect on net income and earnings per common share for the year ended
August 27, 2005 if the Company had applied the fair value recognition provisions of SFAS 123, Accounting for
Stock-Based Compensation, to share-based employee compensation.

(In thousands, except share data)

Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Add: Stock-based compensation included in net income, net of tax of $2,077 . . . . . . .
Deduct: Total stock-based compensation expense determined under fair value based

Year ended
August 27, 2005

$ 9,393
3,388

method for all awards, net of tax benefits of $6,727 . . . . . . . . . . . . . . . . . . . . . . . . . .

(11,159)

Pro forma net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 1,622

Earnings per share:

Basic as reported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted as reported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

Basic pro forma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Diluted pro forma . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

0.12
0.12

0.02
0.02

During September 2004, the Compensation and Stock Option Committee (the Committee) of the Company’s
Board of Directors reviewed the Company’s stock-based compensation plans in light of evolving compensation
practices and the anticipated issuance by the Financial Accounting Standards Board (FASB) of its revision of
FASB Statement No. 123, Accounting for Stock-Based Compensation (SFAS No. 123R) (subsequently issued in
December 2004) which upon adoption required all share-based payments to employees, including grants of
employee stock options, to be recognized in the Company’s consolidated statement of operations based on their
fair values. After consideration of various alternatives, the Committee approved the accelerated and full vesting
of all unvested outstanding employee stock options with exercise prices above $9.21 issued prior to October 1,
2004. The effect of the vesting acceleration was the recognition of incremental share-based employee
compensation of approximately $4.8 million in the first quarter of the year ended August 28, 2005 in the
Company’s pro forma disclosure above. This previously deferred stock-based employee compensation expense
amount would otherwise in part have been recognized in the Company’s consolidated statements of operations in
future periods after the adoption of SFAS No. 123R on August 28, 2005.

F-39

The fair values of options granted and the option component of the employee stock purchase plan shares were
estimated at the date of grant using the Black-Scholes option pricing model and the following assumptions:

Option plans

Expected dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected stock price volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Employee stock purchase plan

Expected dividend yield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected stock price volatility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Risk-free interest rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Year ended
August 27, 2005

0%
75%
3.5%

6.0 years

Year ended
August 27, 2005

0%
75%
2.0%

0.5 years

The expected stock price volatility was based on computations of historical volatility of the Company’s common
stock.

The weighted average fair value of options granted during years ended August 27, 2005 with exercise prices
equal to the market price at the date of grant was $5.69.

Shareholder Rights Plan On July 27, 2005, the Company’s Board of Directors adopted a shareholder rights plan
(the “Rights Plan”) pursuant to which Entegris declared a dividend on August 8, 2005 to its shareholders of
record on that date of one preferred share purchase right (a “Right”) for each share of Entegris common stock
owned on August 8, 2005. Each Right entitles the holder to purchase one-hundredth of a share of a series of
preferred stock at an exercise price of $50, subject to adjustment as provided in the Rights Plan. The Rights Plan
is designed to protect Entegris’ shareholders from attempts by others to acquire Entegris on terms or by using
tactics that could deny all shareholders the opportunity to realize the full value of their investment. The Rights
are attached to the shares of the Company’s common stock until certain triggering events specified in the Rights
Agreement occur, including, unless approved by the Company’s Board of Directors, an acquisition by a person or
group of specified levels of beneficial ownership of Entegris common stock or a tender offer for Entegris
common stock. Upon the occurrence of any of these triggering events, the Rights authorize the holders to
purchase at the then-current exercise price for the Rights, that number of shares of the Company’s common stock
having a value equal to twice the exercise price. The Rights are redeemable by the Company for $0.01 and will
expire on August 8, 2015. One of the events which will trigger the Rights is the acquisition, or commencement of
a tender offer, by a person (an Acquiring Person, as defined in the shareholder rights plan), other than Entegris or
any of its subsidiaries or employee benefit plans, of 15% or more of the outstanding shares of the Company’s
common stock. An Acquiring Person may not exercise a Right.

(17) BENEFIT PLANS

401(k) Plan The Company maintains the Entegris, Inc. 401(k) Savings and Profit Sharing Plan (the 401(k) Plan)
that qualifies as a deferred salary arrangement under Section 401(k) of the Internal Revenue Code. Under the
Plan, eligible employees may defer a portion of their pretax wages, up to the Internal Revenue Service annual
contribution limit. Entegris matches 100% of employees’ contributions on the first 3% of eligible wages and 50%
of employees’ contributions on the next 2% of eligible wages, or a maximum match of 4% of the employee’s
eligible wages. In addition to the matching contribution, the Company’s Board of Directors may, at its discretion,
declare a profit sharing contribution as a percentage of eligible wages based on the company’s worldwide
operating results. The employer profit sharing and matching contribution expense under the Plans was $5.9
million, $5.8 million, $0.7 million and $4.6 million in the fiscal years ended December 31, 2007 and 2006, the
four months ended December 31, 2005, and the fiscal year ended August 27, 2005, respectively.

F-40

Supplemental Savings and Retirement Plan The Company also maintains the Supplemental Savings and
Retirement Plan (the “Supplemental Plan”). Under the Supplemental Plan, certain senior executives are allowed
certain salary deferral benefits that would otherwise be lost by reason of restrictions imposed by the Internal
Revenue Code limiting the amount of compensation which may be deferred under tax-qualified plans. Liabilities
of $3.2 million and $3.2 million at December 31, 2007 and 2006, respectively, related to the Supplemental Plan
are included in the consolidated balance sheets under the caption ”Pension benefit obligations and other
liabilities”. The Company recorded expense of $0.3 million, $0.5 million and $0.3 million in the years ended
December 31, 2007 and 2006 and the four months ended December 31, 2005, respectively. The Company
recorded no expense in connection with the Supplemental Plan in the year ended August 27, 2005.

Defined Benefit Plans. The Company assumed the obligations under defined benefit pension plans in its merger
with Myrkolis on August 6, 2005. The employees of the Company’s subsidiaries in Japan and Taiwan are covered
in defined benefit pension plans. The Company uses a December 31 measurement date for its pension plans.

Effective December 31, 2006, the Company adopted SFAS No. 158, Employers’ Accounting for Defined Benefit
Pension and Other Postretirement Plans. Under SFAS No. 158, the Company is required to recognize the
overfunded or underfunded status of its defined benefit pension plans as an asset or liability in its consolidated
balance sheets and to recognize changes in that funded status in the year in which the changes occur through
comprehensive income. SFAS No. 158 also requires the measurement of the funded status of a plan as of the date of
its year-end consolidated balance sheet. The Company’s existing policy was to measure the funded status of it plans
as of the balance sheet date; accordingly, the new measurement date requirements of SFAS No. 158 had no impact.

F-41

The tables below set forth the Company’s estimated funded status as of December 31, 2007 and 2006:

(In thousands)

Change in benefit obligation:

2007

2006

Benefit obligation at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Plan Amendments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuarial (gains) losses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign exchange impact

$ 14,297
530
1,165
307
1,183
(1,007)
892

$ 14,084
—
1,248
264
(745)
(425)
(129)

Benefit obligation at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

17,367

14,297

Change in plan assets:

Fair value of plan assets at beginning of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Plan Amendments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Return on plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Employer contributions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Benefits paid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Foreign exchange impact

Fair value of plan assets at end of period . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3,824
(510)
349
675
(129)
233

4,442

3,321
—
148
440
(44)
(41)

3,824

Funded status:

Plan assets in excess of/(less than) benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . .

(12,925)

(10,473)

Net amount recognized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$(12,925) $(10,473)

Amounts recognized in the consolidated balance sheet consist of:

Noncurrent liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated other comprehensive loss, net of taxes . . . . . . . . . . . . . . . . . . . . . . . . . . .

$(12,925) $(10,473)
228

951

Amounts recognized in accumulated other comprehensive loss, net of tax consist of:
Net actuarial loss . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prior service cost
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unrecognized transition obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$

417
209
960

Gross amount recognized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Deferred Income taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 1,586
(635)

Net amount recognized . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

951

$

$

175
166
—

341
(113)

228

Information for pension plans with an accumulated benefit obligation in excess of plan assets as of December 31,
2007 and 2006:

(In thousands)

2007

2006

Projected benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accumulated benefit obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fair value of plan assets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$17,367
15,495
4,422

$14,297
12,288
3,824

F-42

The components of the net periodic benefit cost for the years ended December 31, 2007 and 2006, four months
ended December 31, 2005 and year ended August 27, 2005 are as follows:

(In thousands)

Pension benefits:

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

Service cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interest cost . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Expected return on plan assets . . . . . . . . . . . . . . . . . .
Amortization of prior service cost . . . . . . . . . . . . . . . .
Amortization of net transition obligation . . . . . . . . . .
Recognized actuarial net loss . . . . . . . . . . . . . . . . . . .

$1,165
307
(30)
10
(1)
114

Net periodic pension benefit cost

. . . . . . . . . . . .

$1,565

$1,248
264
(33)
10
—
75

$1,564

$ 471
88
(194)
4

—

1

$ 370

$ 63
16
(1)

—
—
—

$ 78

The estimated amount that will be amortized from accumulated other comprehensive income into net periodic
benefit cost in 2008 is as follows:

(In thousands)

Transition obligation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Prior service cost

$(114)
10

$(104)

Assumptions used in determining the benefit obligation and net periodic benefit cost for the Company’s pension
plans are presented in the following table as weighted-averages:

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

Benefit obligations:

Discount rate . . . . . . . . . . . . . . . . . . . .
Rate of compensation increase . . . . . .

Net periodic benefit cost:

Discount rate . . . . . . . . . . . . . . . . . . . .
Rate of compensation increase . . . . . .
Expected return on plan assets . . . . . .

1.78%
6.53%

2.05%
2.26%
0.90%

2.06%
2.26%

1.84%
2.26%
0.90%

1.79%
2.14%

2.15%
2.53%
1.48%

1.79%
2.14%

2.15%
2.53%
1.48%

The discount rate used by the Company is based on rates of long-term government bonds.

Plan Assets

At December 31, 2007, the majority of the Company’s pension plan assets are invested in a Japanese insurance
company’s guaranteed-return fixed income securities. There is interest rate risk associated with the valuation of
these investments. The long-term rate of return on Japanese pension plan assets was developed through an
analysis of historical returns and the fund’s current guaranteed return rate. Estimates of future returns are based
on a continuation of the existing guaranteed rate of return. The remaining portion of the Company's plan assets is
deposited in Central Trust of China in the form of cash, where Central Trust of China is the assigned funding
vehicle for the statutory retirement benefit.

F-43

Cash Flows

The Company expects to contribute $1.0 million to its defined benefit pension plans during fiscal 2008. The
following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:

(In thousands)

2008 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2009 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2010 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2011 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2012 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Years 2013-2017 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 570
456
491
711
458
2,737

(18) EARNINGS PER SHARE (EPS)

Basic EPS is computed by dividing net income (loss) by the weighted average number of shares of common
stock outstanding during each period. The following table presents a reconciliation of the share amounts used in
the computation of basic and diluted earnings per share:

(In thousands)

Basic earnings per share—Weighted common shares

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year
ended
August 27,
2005

outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

122,557

135,116

135,437

77,137

Weighted common shares assumed upon exercise of

options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1,617

2,377

Weighted common shares assumed upon vesting of

restricted common stock . . . . . . . . . . . . . . . . . . . . . . . . . .

766

999

—

—

1,844

347

Diluted earnings per share—Weighted common shares

outstanding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

124,940

138,492

135,437

79,328

Approximately 3.6 million, 4.5 million, and 2.9 million of the Company’s stock options were excluded from the
calculation of diluted earnings per share in the fiscal years ended December 31, 2007 and 2006, and the fiscal
year ended August 27, 2005, respectively, because the exercise prices of the stock options were greater than the
average price of the Company’s common stock, and therefore their inclusion would have been antidilutive. The
effect of the inclusion of stock options and unvested restricted common stock for the four-month period ended
December 31, 2005 would have been anti-dilutive.

(19) SEGMENT INFORMATION

Entegris operates in one segment for the design, development, manufacture, marketing and sale of material
integrity management products and services predominantly within the semiconductor industry. All products are
sold on a worldwide basis. In accordance with SFAS No. 131, Disclosures About Segments of an Enterprise and
Related Information, the Company’s chief operating decision-maker has been identified as the President and
Chief Executive Officer, who reviews operating results to make decisions about allocating resources and
assessing performance for the entire company. Since Entegris operates in one reportable segment, all financial
information required by SFAS 131 can be found in the consolidated financial statements.

F-44

The following table summarizes total net sales by markets served:

(In thousands)

Net sales:

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

Semiconductor . . . . . . . . . . . . . . . . . . .
Data storage . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . .

$482,083
37,334
106,821

$626,238

$526,243
44,461
102,178

$672,882

$153,664
13,527
32,453

$258,835
42,363
46,147

$199,644

$347,345

The following tables summarize total net sales, based upon the country to which sales to external customers were
made, and property, plant and equipment attributed to significant countries:

(In thousands)

Net sales:

Year ended
December 31,
2007

Year ended
December 31,
2006

Four months
ended
December 31,
2005

Year ended
August 27,
2005

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Germany . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Taiwan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Singapore . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Korea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Malaysia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
China . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$163,146
144,231
30,508
89,012
34,168
51,477
21,230
18,504
73,962

$193,887
153,454
25,635
82,039
30,648
55,901
24,945
15,507
90,866

$ 61,641
44,276
7,104
26,260
9,611
15,388
6,529
5,498
23,337

$118,128
57,101
16,815
33,694
25,842
24,737
13,776
7,337
49,915

(In thousands)

Property, plant and equipment:

$626,238

$672,882

$199,644

$347,345

December 31,
2007

December 31,
2006

December 31,
2005

August 27,
2005

United States . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Japan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Germany . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Malaysia . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Other . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

$ 63,774
22,481
238
27,270
7,394

$ 69,463
21,114
290
22,874
7,246

$ 73,131
19,740
3,953
16,168
7,137

$ 74,079
20,499
6,090
15,890
6,798

$121,157

$120,987

$120,129

$123,356

In the fiscal years ended December 31, 2007 and 2006, four months ended December 31, 2005 and fiscal year
ended August 27, 2005, no single nonaffiliated customer accounted for 10% or more of net sales. In the fiscal
years ended December 31, 2007 and 2006, the four months ended December 31, 2005, and the fiscal year ended
August 27, 2005 , net sales to the Company’s top ten customers accounted for approximately 28%, 27%, 33%
and 35%, respectively, of the Company’s net sales.

F-45

(20) COMMITMENTS AND CONTINGENT LIABILITIES

The following discussion provides information regarding certain litigation to which the Company was a party
that were pending as of December 31, 2007.

As previously disclosed, on March 3, 2003 the Company’s predecessor, Mykrolis Corporation, filed a lawsuit
against Pall Corporation in the United States District Court for the District of Massachusetts alleging
infringement of two of the Company’s U.S. patents by certain fluid separation systems and related assemblies
used in photolithography applications manufactured and sold by the defendant. The Company’s lawsuit also
sought a preliminary injunction preventing the defendant from the manufacture, use, sale, offer for sale or
importation into the U.S. of any infringing product. On April 30, 2004, the Court issued a preliminary injunction
against Pall Corporation and ordered Pall to immediately stop making, using, selling, or offering to sell within
the U.S., or importing into the U.S., its PhotoKleen EZD-2 Filter Assembly products or “any colorable imitation”
of those products. On January 18, 2005, the Court issued an order holding Pall Corporation in contempt of court
for the violation of the preliminary injunction and ordering Pall to disgorge all profits earned from the sale of its
PhotoKleen EZD-2 Filter Assembly products and colorable imitations thereof from the date the preliminary
injunction was issued through January 12, 2005. In addition, Pall was also ordered to reimburse Mykrolis for
certain of its attorney’s fees associated with the contempt and related proceedings. The Court’s order also
dissolved the preliminary injunction, effective January 12, 2005, based on certain prior art cited by Pall which it
alleged raised questions as to the validity of the patents in suit. On February 17, 2005, the Company filed notice
of appeal to the U.S. Circuit Court of Appeals for the Federal Circuit appealing the portion of the Court’s order
that dissolved the preliminary injunction and Pall filed a notice of appeal to that court with respect to the finding
of contempt and the award of attorneys’ fees. On June 13, 2007 the Court of Appeals issued an opinion
dismissing Pall’s appeal for lack of jurisdiction and affirming the District Court’s order dissolving the
preliminary injunction.

On April 6, 2006 the Company filed a lawsuit against Pall Corporation in the United States District Court for the
District of Massachusetts alleging infringement of the Company’s newly issued U.S. patent No. 7,021,667 by
certain filter assembly products used in photolithography applications that are manufactured and sold by the
defendant. The Company’s lawsuit also seeks a preliminary injunction preventing the defendant from the
manufacture, use, sale, offer for sale or importation into the U.S. of the infringing products. On October 23, 2006
the Company’s motion for preliminary injunction was argued before the court; a decision on this motion is
pending.

On August 23, 2006 the Company filed a lawsuit against Pall Corporation in the United States District Court for
the District of Massachusetts alleging infringement of the Company’s newly issued U.S. patent No. 7,037,424 by
certain fluid separation modules and related separation apparatus, including the product known as the EZD-3
Filter Assembly, used in photolithography applications that are manufactured and sold by the defendant. It is
believed that the EZD-3 Filter Assembly was introduced into the market by the defendant in response to the
action brought by the Company in March of 2003 as described above. This case is currently in the preliminary
stages.

As previously disclosed, on December 16, 2005 Pall Corporation filed suit against the Company in U.S. District
Court for the Eastern District of New York alleging patent infringement. Specifically, the suit alleges
infringement of two of plaintiff’s patents by one of the Company’s gas filtration products and by the packaging
for certain of the Company’s liquid filtration products. Both products and their predecessor products have been
on the market for a number of years. The Company intends to vigorously defend this suit and believes that it will
ultimately prevail. This case is currently in the discovery stage.

On May, 4, 2007 Pall Corporation filed a lawsuit against the Company in the U.S. District Court for the Eastern
District of New York alleging patent infringement. Specifically, the suit alleges that certain of the Company’s
point-of-use filtration products infringe a newly issued Pall patent, as well as three older Pall patents. Pall’s

F-46

action, which relates only to the U.S., asserts that “on information and belief” the Company’s Impact 2 and
Impact Plus point-of-use photoresist filters infringe a patent issued to Pall on March 27, 2007, as well as three
older patents. The Company intends to vigorously defend this suit and believes that it will ultimately prevail.
This case is currently in the preliminary stage.

(21) SUBSEQUENT EVENT

On February 15, 2008, the Company entered into an unsecured domestic credit agreement with Wells Fargo
Bank, National Association, as agent, and certain other banks. The agreement provides for a $230 million
revolving credit facility (the Facility) for a period of five years with an uncommitted option to expand the
Facility by up to $20 million provided that no default or event of default has occurred or is continuing at such
time. The Facility replaces the Company’s credit agreement, executed in June 2007 between the Company and
Wells Fargo Bank, National Association, as agent, and certain other banks. The Company generally may elect
that the loans comprising each borrowing bear interest at a rate per annum equal to (a) the Base Rate equal to the
higher of the Prime Rate then in effect and the Federal Funds Rate then in effect, plus 0.50% or (b) a LIBOR rate
plus a LIBOR Margin ranging from 1.00% to 1.50% depending on leverage.

The Facility is guaranteed by the Company’s material direct and indirect subsidiaries which are treated as
domestic for tax purposes. In addition, the Facility is secured by a pledge of 65% of the stock owned by the
domestic subsidiaries of each material subsidiary which is treated as foreign for tax purposes. The Facility
requires that the Company comply on a quarterly basis with certain financial covenants, including leverage and
interest coverage ratio covenants. In addition, the Facility includes negative covenants, subject to exceptions,
restricting or limiting our ability and the ability of our subsidiaries to, among other things, sell assets, engage in
mergers, acquisitions and other business combinations, and declare dividends or redeem or repurchase capital
stock. The Facility also contains customary representations, warranties, covenants and events of default.

F-47

(22) QUARTERLY INFORMATION-UNAUDITED

(In thousands, except per share data)

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income from continuing operations . . . . . . . . . . . . . . . . .
Net loss from discontinued operations . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic earnings (loss) per share

Continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Discontinued operations . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted earnings (loss) per share

Continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Discontinued operations . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

(In thousands, except per share data)

Net sales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gross profit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Net income from continuing operations . . . . . . . . . . . . . . . . .
Net income (loss) from discontinued operations . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Basic earnings per share

Continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Discontinued operations . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Diluted earnings per share

Continuing operations . . . . . . . . . . . . . . . . . . . . . . . . . . .
Discontinued operations . . . . . . . . . . . . . . . . . . . . . . . . .
Net income . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Fiscal quarter ended

March 31,
2007

June 30,
2007

September 29,
2007

December 31,
2007

$159,571
68,508
10,494
(111)
10,383

$153,508
65,494
15,750
(973)
14,777

$151,811
65,510
8,953
(536)
8,417

$161,348
66,725
11,159
(377)
10,782

0.08
0.00
0.08

0.08
0.00
0.08

0.12
(0.01)
0.11

0.12
(0.01)
0.11

0.08
(0.00)
0.07

0.08
(0.00)
0.07

0.10
(0.00)
0.09

0.10
(0.00)
0.09

Fiscal quarter ended

April 1,
2006

July 1,
2006

September 30,
2006

December 31,
2006

$156,406
72,827
10,006
1,347
11,353

$179,296
86,981
18,782
(589)
18,193

$169,880
75,838
18,018
(197)
17,821

$167,300
69,432
16,345
(246)
16,099

0.07
0.01
0.08

0.07
0.01
0.08

0.14
—
0.13

0.13
—
0.13

0.13
—
0.13

0.13
—
0.13

0.12
—
0.12

0.12
—
0.12

F-48

OFFICERS
Gideon Argov
John B. Goodman

Gregory B. Graves

Bertrand Loy

President and Chief Executive Officer
Senior Vice President, Chief Technology
and Innovation Officer
Senior Vice President and Chief 
Financial Officer
Executive Vice President and Chief
Administrative Officer
Senior Vice President, Human Resources

John J. Murphy
Jean-Marc Pandraud Executive Vice President and Chief

Peter W. Walcott

Operating Officer
Senior Vice President and 
General Counsel

BOARD OF DIRECTORS
Gideon Argov 

Michael A. Bradley

Michael P. C. Carns

President and Chief Executive Officer,
Entegris, Inc.
President and Chief Executive Officer,
Teradyne, Inc.
Independent Business Consultant;
Chairman of the Management
Development and Compensation
Committee
Daniel W. Christman  Lieutenant General (retired); Senior 
Vice President International Affairs, 
U.S. Chamber of Commerce
Former Chief Executive Officer, 
Entegris, Inc.; Chairman of the Board
President, Green Giant Worldwide, 
a division of The Pillsbury Company
(retired)
Chief Executive Officer, MEMC (retired);
Chairman of the Audit and Finance
Committee
Paul L. H. Olson, Ph.D. Executive Vice President, Bethel

James E. Dauwalter

Roger D. McDaniel 

Gary F. Klingl

Brian F. Sullivan 

University; Chairman of the Governance
and Nominating Committee
President and Chief Executive Officer,
SterilMed, Inc.

CORPORATE WEB SITE
www.entegris.com

STOCK LISTING
Entegris’ common stock is traded on the NASDAQ Global Select
MarketSM under the symbol ENTG.

ANNUAL MEETING
The Annual Meeting of Shareholders will be held:

May 7, 2008 – 10:00 a.m. (Central Time)
Entegris, Inc.
Corporate Headquarters
3500 Lyman Boulevard
Chaska, MN 55318 USA
Tel. +1 952-556-3131

REGISTRAR AND TRANSFER AGENT
Registered shareholders should direct questions regarding 
stock certificates, name or address changes, notification of 
lost certificates or stock transfers to:
Wells Fargo Bank Minnesota, N.A.
Shareowner Services
Post Office Box 64854
161 North Concord Exchange Street
South St. Paul, MN 55075-1139 USA
Tel. 1-800-468-9716
Fax +1 651-450-4033

Beneficial shareholders should direct questions regarding all
administrative matters to your stockbroker.

INVESTOR INFORMATION
Copies of the Company’s Annual Report, Proxy Statement, Forms
10-K and10-Q reports filed with the Securities and Exchange
Commission can be obtained through one of the following:
Internet: www.entegris.com
Mail: 

Entegris, Inc.
Investor Relations
3500 Lyman Boulevard
Chaska, MN 55318 USA
irelations@entegris.com
+1 952-556-8080
+1 952-556-8644

E-mail: 
Tel. 
Fax 

FORWARD-LOOKING STATEMENTS
Certain  information  contained  in  this  document  includes  forward-looking
statements within the meaning of the Private Securities Litigation Reform
Act of 1995. These forward-looking statements are based on current man-
agement expectations that involve substantial risks and uncertainties which
could  cause  actual  results  to  differ  materially  from  the  results  expressed 
in, or implied by, these forward-looking statements. Statements which are
modified  by  words  such  as  ‘‘anticipate,’’  ‘‘believe,’’  ‘‘estimate,’’  ‘‘expect,’’
“forecast,” ‘‘may,’’ ‘‘will,’’ ‘‘should’’ or the negative thereof and similar expres-
sions as they relate to Entegris or our management are intended to identify
such forward-looking statements. These statements are not guarantees of
future performance and involve risks, uncertainties and assumptions which
are difficult to predict. The risks which could cause actual results to differ
from  those  discussed  herein  include,  without  limit:  (i)  the  risks  described
under  the  headings  ”Risks  Relating  to  our  Business  and  Industry,”
“Manufacturing Risks,” “International Risks” and ”Risks Related to Securities
Markets  and  Ownership  of  Our  Securities”  in  Item  1A,  Risk  Factors  in  the
Entegris,  Inc.  Annual  Report  on  Form  10–K  for  the  fiscal  year  ended
December 31, 2007; (ii) other matters and important factors disclosed pre-
viously  and  from  time  to  time  in  the  filings  of  Entegris  with  the  U.S.
Securities and Exchange Commission. The forward-looking statements made
in this document relate only to events as of the date on which the state-
ments are made. Except as required under the federal securities laws and the
rules and regulations of the Securities and Exchange Commission, we do not
have  any  intention  or  obligation  to  update  publicly  any  forward-looking
statements contained herein.

Entegris®, Chambergard™, Connectology®, Crystalpak®, DeviceCare®, GateKeeper®,
IntelliGen®, Planarcore®, Mykrolis®, Torrento™, Ultrapak®, WaferCare®, Wafergard®,
Waferpure®, the symbol of the linked rings and the Entegris logotype are trademarks
of Entegris, Inc. 
The NASDAQ Global Select MarketSM is a service  mark of the Nasdaq Stock
Market, Inc.